Home / 242,922.53-335,142.73-140,890.78

Finding the Fourth Proportional to 242,922.53, 335,142.73 and 140,890.78

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Solution

The fourth proportional to 242,922.53, 335,142.73 and 140,890.78 is: 194,376.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,922.53 : 335,142.73 = 140,890.78 : x
  2. Step 2: Convert to fraction form
    242,922.53/335,142.73 = 140,890.78/x
  3. Step 3: Cross multiply
    242,922.53x = 335,142.73 × 140,890.78
  4. Step 4: Simplify right side
    242,922.53x = 47,218,520,641.03
  5. Step 5: Solve for x
    x = 47,218,520,641.03/242,922.53
  6. Step 6: Final answer
    x = 194,376.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.