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Finding the Fourth Proportional to 255,732.60, 383,454.90 and 97,966.20

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Solution

The fourth proportional to 255,732.60, 383,454.90 and 97,966.20 is: 146,894.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,732.60 : 383,454.90 = 97,966.20 : x
  2. Step 2: Convert to fraction form
    255,732.60/383,454.90 = 97,966.20/x
  3. Step 3: Cross multiply
    255,732.60x = 383,454.90 × 97,966.20
  4. Step 4: Simplify right side
    255,732.60x = 37,565,619,424.38
  5. Step 5: Solve for x
    x = 37,565,619,424.38/255,732.60
  6. Step 6: Final answer
    x = 146,894.14

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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.