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Finding the Fourth Proportional to 320,686.46, 480,882.45 and 92,930.30

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Solution

The fourth proportional to 320,686.46, 480,882.45 and 92,930.30 is: 139,352.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,686.46 : 480,882.45 = 92,930.30 : x
  2. Step 2: Convert to fraction form
    320,686.46/480,882.45 = 92,930.30/x
  3. Step 3: Cross multiply
    320,686.46x = 480,882.45 × 92,930.30
  4. Step 4: Simplify right side
    320,686.46x = 44,688,550,343.24
  5. Step 5: Solve for x
    x = 44,688,550,343.24/320,686.46
  6. Step 6: Final answer
    x = 139,352.78

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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.