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Finding the Fourth Proportional to 257,737.80, 386,606.70 and 222,308.40

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Solution

The fourth proportional to 257,737.80, 386,606.70 and 222,308.40 is: 333,462.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,737.80 : 386,606.70 = 222,308.40 : x
  2. Step 2: Convert to fraction form
    257,737.80/386,606.70 = 222,308.40/x
  3. Step 3: Cross multiply
    257,737.80x = 386,606.70 × 222,308.40
  4. Step 4: Simplify right side
    257,737.80x = 85,945,916,906.28
  5. Step 5: Solve for x
    x = 85,945,916,906.28/257,737.80
  6. Step 6: Final answer
    x = 333,462.60

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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.