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Finding the Fourth Proportional to 162,310.53, 243,491.96 and 49,990.71

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Solution

The fourth proportional to 162,310.53, 243,491.96 and 49,990.71 is: 74,994.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,310.53 : 243,491.96 = 49,990.71 : x
  2. Step 2: Convert to fraction form
    162,310.53/243,491.96 = 49,990.71/x
  3. Step 3: Cross multiply
    162,310.53x = 243,491.96 × 49,990.71
  4. Step 4: Simplify right side
    162,310.53x = 12,172,335,709.74
  5. Step 5: Solve for x
    x = 12,172,335,709.74/162,310.53
  6. Step 6: Final answer
    x = 74,994.12

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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.