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Finding the Fourth Proportional to 307,211.70, 460,882.35 and 129,627.30

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Solution

The fourth proportional to 307,211.70, 460,882.35 and 129,627.30 is: 194,468.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,211.70 : 460,882.35 = 129,627.30 : x
  2. Step 2: Convert to fraction form
    307,211.70/460,882.35 = 129,627.30/x
  3. Step 3: Cross multiply
    307,211.70x = 460,882.35 × 129,627.30
  4. Step 4: Simplify right side
    307,211.70x = 59,742,934,648.16
  5. Step 5: Solve for x
    x = 59,742,934,648.16/307,211.70
  6. Step 6: Final answer
    x = 194,468.29

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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.