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Finding the Fourth Proportional to 257,370.35, 386,107.02 and 88,896.83

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Solution

The fourth proportional to 257,370.35, 386,107.02 and 88,896.83 is: 133,363.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,370.35 : 386,107.02 = 88,896.83 : x
  2. Step 2: Convert to fraction form
    257,370.35/386,107.02 = 88,896.83/x
  3. Step 3: Cross multiply
    257,370.35x = 386,107.02 × 88,896.83
  4. Step 4: Simplify right side
    257,370.35x = 34,323,688,188.21
  5. Step 5: Solve for x
    x = 34,323,688,188.21/257,370.35
  6. Step 6: Final answer
    x = 133,363.03

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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.