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Finding the Fourth Proportional to 337,431.60, 506,341.80 and 127,220.40

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Solution

The fourth proportional to 337,431.60, 506,341.80 and 127,220.40 is: 190,903.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,431.60 : 506,341.80 = 127,220.40 : x
  2. Step 2: Convert to fraction form
    337,431.60/506,341.80 = 127,220.40/x
  3. Step 3: Cross multiply
    337,431.60x = 506,341.80 × 127,220.40
  4. Step 4: Simplify right side
    337,431.60x = 64,417,006,332.72
  5. Step 5: Solve for x
    x = 64,417,006,332.72/337,431.60
  6. Step 6: Final answer
    x = 190,903.89

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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.