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Finding the Fourth Proportional to 288,489.27, 432,733.91 and 111,079.83

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Solution

The fourth proportional to 288,489.27, 432,733.91 and 111,079.83 is: 166,619.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,489.27 : 432,733.91 = 111,079.83 : x
  2. Step 2: Convert to fraction form
    288,489.27/432,733.91 = 111,079.83/x
  3. Step 3: Cross multiply
    288,489.27x = 432,733.91 × 111,079.83
  4. Step 4: Simplify right side
    288,489.27x = 48,068,008,602.64
  5. Step 5: Solve for x
    x = 48,068,008,602.64/288,489.27
  6. Step 6: Final answer
    x = 166,619.75

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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.