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Finding the Fourth Proportional to 402,073.90, 601,603.40 and 239,372.83

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Solution

The fourth proportional to 402,073.90, 601,603.40 and 239,372.83 is: 358,161.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,073.90 : 601,603.40 = 239,372.83 : x
  2. Step 2: Convert to fraction form
    402,073.90/601,603.40 = 239,372.83/x
  3. Step 3: Cross multiply
    402,073.90x = 601,603.40 × 239,372.83
  4. Step 4: Simplify right side
    402,073.90x = 144,007,507,490.05
  5. Step 5: Solve for x
    x = 144,007,507,490.05/402,073.90
  6. Step 6: Final answer
    x = 358,161.79

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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.