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Finding the Fourth Proportional to 423,356.04, 584,222.99 and 239,591.21

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Solution

The fourth proportional to 423,356.04, 584,222.99 and 239,591.21 is: 330,631.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,356.04 : 584,222.99 = 239,591.21 : x
  2. Step 2: Convert to fraction form
    423,356.04/584,222.99 = 239,591.21/x
  3. Step 3: Cross multiply
    423,356.04x = 584,222.99 × 239,591.21
  4. Step 4: Simplify right side
    423,356.04x = 139,974,690,761.78
  5. Step 5: Solve for x
    x = 139,974,690,761.78/423,356.04
  6. Step 6: Final answer
    x = 330,631.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.