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Finding the Fourth Proportional to 323,125.14, 484,680.78 and 86,467.80

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Solution

The fourth proportional to 323,125.14, 484,680.78 and 86,467.80 is: 129,699.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,125.14 : 484,680.78 = 86,467.80 : x
  2. Step 2: Convert to fraction form
    323,125.14/484,680.78 = 86,467.80/x
  3. Step 3: Cross multiply
    323,125.14x = 484,680.78 × 86,467.80
  4. Step 4: Simplify right side
    323,125.14x = 41,909,280,748.88
  5. Step 5: Solve for x
    x = 41,909,280,748.88/323,125.14
  6. Step 6: Final answer
    x = 129,699.85

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1.5x scale

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.