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Finding the Fourth Proportional to 546,747.70, 820,121.55 and 152,763.70

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Solution

The fourth proportional to 546,747.70, 820,121.55 and 152,763.70 is: 229,145.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,747.70 : 820,121.55 = 152,763.70 : x
  2. Step 2: Convert to fraction form
    546,747.70/820,121.55 = 152,763.70/x
  3. Step 3: Cross multiply
    546,747.70x = 820,121.55 × 152,763.70
  4. Step 4: Simplify right side
    546,747.70x = 125,284,802,427.74
  5. Step 5: Solve for x
    x = 125,284,802,427.74/546,747.70
  6. Step 6: Final answer
    x = 229,145.55

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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.