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Finding the Fourth Proportional to 255,169.56, 382,836.30 and 77,710.92

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Solution

The fourth proportional to 255,169.56, 382,836.30 and 77,710.92 is: 116,591.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,169.56 : 382,836.30 = 77,710.92 : x
  2. Step 2: Convert to fraction form
    255,169.56/382,836.30 = 77,710.92/x
  3. Step 3: Cross multiply
    255,169.56x = 382,836.30 × 77,710.92
  4. Step 4: Simplify right side
    255,169.56x = 29,750,561,082.40
  5. Step 5: Solve for x
    x = 29,750,561,082.40/255,169.56
  6. Step 6: Final answer
    x = 116,591.34

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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.