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Finding the Fourth Proportional to 423,356.79, 584,224.02 and 239,591.96

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Solution

The fourth proportional to 423,356.79, 584,224.02 and 239,591.96 is: 330,632.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,356.79 : 584,224.02 = 239,591.96 : x
  2. Step 2: Convert to fraction form
    423,356.79/584,224.02 = 239,591.96/x
  3. Step 3: Cross multiply
    423,356.79x = 584,224.02 × 239,591.96
  4. Step 4: Simplify right side
    423,356.79x = 139,975,375,109.76
  5. Step 5: Solve for x
    x = 139,975,375,109.76/423,356.79
  6. Step 6: Final answer
    x = 330,632.17

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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.