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Finding the Fourth Proportional to 242,838.91, 364,363.11 and 130,387.73

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Solution

The fourth proportional to 242,838.91, 364,363.11 and 130,387.73 is: 195,637.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,838.91 : 364,363.11 = 130,387.73 : x
  2. Step 2: Convert to fraction form
    242,838.91/364,363.11 = 130,387.73/x
  3. Step 3: Cross multiply
    242,838.91x = 364,363.11 × 130,387.73
  4. Step 4: Simplify right side
    242,838.91x = 47,508,476,986.82
  5. Step 5: Solve for x
    x = 47,508,476,986.82/242,838.91
  6. Step 6: Final answer
    x = 195,637.83

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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.