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Finding the Fourth Proportional to 515,817.20, 773,725.80 and 160,828.40

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Solution

The fourth proportional to 515,817.20, 773,725.80 and 160,828.40 is: 241,242.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,817.20 : 773,725.80 = 160,828.40 : x
  2. Step 2: Convert to fraction form
    515,817.20/773,725.80 = 160,828.40/x
  3. Step 3: Cross multiply
    515,817.20x = 773,725.80 × 160,828.40
  4. Step 4: Simplify right side
    515,817.20x = 124,437,082,452.72
  5. Step 5: Solve for x
    x = 124,437,082,452.72/515,817.20
  6. Step 6: Final answer
    x = 241,242.60

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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.