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Finding the Fourth Proportional to 162,215.69, 243,324.11 and 49,895.15

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Solution

The fourth proportional to 162,215.69, 243,324.11 and 49,895.15 is: 74,842.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,215.69 : 243,324.11 = 49,895.15 : x
  2. Step 2: Convert to fraction form
    162,215.69/243,324.11 = 49,895.15/x
  3. Step 3: Cross multiply
    162,215.69x = 243,324.11 × 49,895.15
  4. Step 4: Simplify right side
    162,215.69x = 12,140,692,717.59
  5. Step 5: Solve for x
    x = 12,140,692,717.59/162,215.69
  6. Step 6: Final answer
    x = 74,842.90

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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.