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Finding the Fourth Proportional to 191,429.91, 287,185.89 and 58,320.89

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Solution

The fourth proportional to 191,429.91, 287,185.89 and 58,320.89 is: 87,493.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,429.91 : 287,185.89 = 58,320.89 : x
  2. Step 2: Convert to fraction form
    191,429.91/287,185.89 = 58,320.89/x
  3. Step 3: Cross multiply
    191,429.91x = 287,185.89 × 58,320.89
  4. Step 4: Simplify right side
    191,429.91x = 16,748,936,700.24
  5. Step 5: Solve for x
    x = 16,748,936,700.24/191,429.91
  6. Step 6: Final answer
    x = 87,493.83

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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.