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Finding the Fourth Proportional to 257,303.46, 385,981.38 and 88,801.86

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Solution

The fourth proportional to 257,303.46, 385,981.38 and 88,801.86 is: 133,211.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,303.46 : 385,981.38 = 88,801.86 : x
  2. Step 2: Convert to fraction form
    257,303.46/385,981.38 = 88,801.86/x
  3. Step 3: Cross multiply
    257,303.46x = 385,981.38 × 88,801.86
  4. Step 4: Simplify right side
    257,303.46x = 34,275,864,469.37
  5. Step 5: Solve for x
    x = 34,275,864,469.37/257,303.46
  6. Step 6: Final answer
    x = 133,211.83

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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.