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Finding the Fourth Proportional to 306,079.60, 459,166.88 and 156,238.72

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Solution

The fourth proportional to 306,079.60, 459,166.88 and 156,238.72 is: 234,382.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,079.60 : 459,166.88 = 156,238.72 : x
  2. Step 2: Convert to fraction form
    306,079.60/459,166.88 = 156,238.72/x
  3. Step 3: Cross multiply
    306,079.60x = 459,166.88 × 156,238.72
  4. Step 4: Simplify right side
    306,079.60x = 71,739,645,597.59
  5. Step 5: Solve for x
    x = 71,739,645,597.59/306,079.60
  6. Step 6: Final answer
    x = 234,382.32

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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.