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Finding the Fourth Proportional to 306,079.56, 459,166.92 and 156,238.68

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Solution

The fourth proportional to 306,079.56, 459,166.92 and 156,238.68 is: 234,382.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,079.56 : 459,166.92 = 156,238.68 : x
  2. Step 2: Convert to fraction form
    306,079.56/459,166.92 = 156,238.68/x
  3. Step 3: Cross multiply
    306,079.56x = 459,166.92 × 156,238.68
  4. Step 4: Simplify right side
    306,079.56x = 71,739,633,480.47
  5. Step 5: Solve for x
    x = 71,739,633,480.47/306,079.56
  6. Step 6: Final answer
    x = 234,382.31

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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.