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Finding the Fourth Proportional to 162,338.40, 243,527.04 and 68,832

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Solution

The fourth proportional to 162,338.40, 243,527.04 and 68,832 is: 103,256.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,338.40 : 243,527.04 = 68,832 : x
  2. Step 2: Convert to fraction form
    162,338.40/243,527.04 = 68,832/x
  3. Step 3: Cross multiply
    162,338.40x = 243,527.04 × 68,832
  4. Step 4: Simplify right side
    162,338.40x = 16,762,453,217.28
  5. Step 5: Solve for x
    x = 16,762,453,217.28/162,338.40
  6. Step 6: Final answer
    x = 103,256.24

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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.