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Finding the Fourth Proportional to 423,759.84, 584,645.82 and 239,973.28

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Solution

The fourth proportional to 423,759.84, 584,645.82 and 239,973.28 is: 331,082.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,759.84 : 584,645.82 = 239,973.28 : x
  2. Step 2: Convert to fraction form
    423,759.84/584,645.82 = 239,973.28/x
  3. Step 3: Cross multiply
    423,759.84x = 584,645.82 × 239,973.28
  4. Step 4: Simplify right side
    423,759.84x = 140,299,375,063.69
  5. Step 5: Solve for x
    x = 140,299,375,063.69/423,759.84
  6. Step 6: Final answer
    x = 331,082.28

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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.