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Finding the Fourth Proportional to 257,300.46, 385,976.88 and 88,798.86

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Solution

The fourth proportional to 257,300.46, 385,976.88 and 88,798.86 is: 133,207.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,300.46 : 385,976.88 = 88,798.86 : x
  2. Step 2: Convert to fraction form
    257,300.46/385,976.88 = 88,798.86/x
  3. Step 3: Cross multiply
    257,300.46x = 385,976.88 × 88,798.86
  4. Step 4: Simplify right side
    257,300.46x = 34,274,306,930.36
  5. Step 5: Solve for x
    x = 34,274,306,930.36/257,300.46
  6. Step 6: Final answer
    x = 133,207.33

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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.