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Finding the Fourth Proportional to 307,031.92, 460,609.96 and 129,539.36

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Solution

The fourth proportional to 307,031.92, 460,609.96 and 129,539.36 is: 194,335.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,031.92 : 460,609.96 = 129,539.36 : x
  2. Step 2: Convert to fraction form
    307,031.92/460,609.96 = 129,539.36/x
  3. Step 3: Cross multiply
    307,031.92x = 460,609.96 × 129,539.36
  4. Step 4: Simplify right side
    307,031.92x = 59,667,119,428.03
  5. Step 5: Solve for x
    x = 59,667,119,428.03/307,031.92
  6. Step 6: Final answer
    x = 194,335.23

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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.