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Finding the Fourth Proportional to 515,801.70, 773,702.55 and 160,812.90

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Solution

The fourth proportional to 515,801.70, 773,702.55 and 160,812.90 is: 241,219.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,801.70 : 773,702.55 = 160,812.90 : x
  2. Step 2: Convert to fraction form
    515,801.70/773,702.55 = 160,812.90/x
  3. Step 3: Cross multiply
    515,801.70x = 773,702.55 × 160,812.90
  4. Step 4: Simplify right side
    515,801.70x = 124,421,350,802.90
  5. Step 5: Solve for x
    x = 124,421,350,802.90/515,801.70
  6. Step 6: Final answer
    x = 241,219.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.