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Finding the Fourth Proportional to 337,620.60, 506,430.90 and 137,809.80

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Solution

The fourth proportional to 337,620.60, 506,430.90 and 137,809.80 is: 206,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,620.60 : 506,430.90 = 137,809.80 : x
  2. Step 2: Convert to fraction form
    337,620.60/506,430.90 = 137,809.80/x
  3. Step 3: Cross multiply
    337,620.60x = 506,430.90 × 137,809.80
  4. Step 4: Simplify right side
    337,620.60x = 69,791,141,042.82
  5. Step 5: Solve for x
    x = 69,791,141,042.82/337,620.60
  6. Step 6: Final answer
    x = 206,714.70

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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.