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Finding the Fourth Proportional to 268,564.92, 402,885.72 and 100,070.88

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Solution

The fourth proportional to 268,564.92, 402,885.72 and 100,070.88 is: 150,120.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,564.92 : 402,885.72 = 100,070.88 : x
  2. Step 2: Convert to fraction form
    268,564.92/402,885.72 = 100,070.88/x
  3. Step 3: Cross multiply
    268,564.92x = 402,885.72 × 100,070.88
  4. Step 4: Simplify right side
    268,564.92x = 40,317,128,539.83
  5. Step 5: Solve for x
    x = 40,317,128,539.83/268,564.92
  6. Step 6: Final answer
    x = 150,120.61

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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.