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Finding the Fourth Proportional to 323,672.10, 485,507.34 and 87,014.76

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Solution

The fourth proportional to 323,672.10, 485,507.34 and 87,014.76 is: 130,521.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,672.10 : 485,507.34 = 87,014.76 : x
  2. Step 2: Convert to fraction form
    323,672.10/485,507.34 = 87,014.76/x
  3. Step 3: Cross multiply
    323,672.10x = 485,507.34 × 87,014.76
  4. Step 4: Simplify right side
    323,672.10x = 42,246,304,668.34
  5. Step 5: Solve for x
    x = 42,246,304,668.34/323,672.10
  6. Step 6: Final answer
    x = 130,521.92

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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.