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Finding the Fourth Proportional to 191,244.52, 286,876.14 and 72,893.80

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Solution

The fourth proportional to 191,244.52, 286,876.14 and 72,893.80 is: 109,344.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,244.52 : 286,876.14 = 72,893.80 : x
  2. Step 2: Convert to fraction form
    191,244.52/286,876.14 = 72,893.80/x
  3. Step 3: Cross multiply
    191,244.52x = 286,876.14 × 72,893.80
  4. Step 4: Simplify right side
    191,244.52x = 20,911,491,973.93
  5. Step 5: Solve for x
    x = 20,911,491,973.93/191,244.52
  6. Step 6: Final answer
    x = 109,344.27

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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.