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Finding the Fourth Proportional to 288,382.86, 432,584.68 and 108,451.79

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Solution

The fourth proportional to 288,382.86, 432,584.68 and 108,451.79 is: 162,681.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,382.86 : 432,584.68 = 108,451.79 : x
  2. Step 2: Convert to fraction form
    288,382.86/432,584.68 = 108,451.79/x
  3. Step 3: Cross multiply
    288,382.86x = 432,584.68 × 108,451.79
  4. Step 4: Simplify right side
    288,382.86x = 46,914,583,682.91
  5. Step 5: Solve for x
    x = 46,914,583,682.91/288,382.86
  6. Step 6: Final answer
    x = 162,681.60

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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.