Home / 251,981.40-377,972.10-133,591.80

Finding the Fourth Proportional to 251,981.40, 377,972.10 and 133,591.80

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Solution

The fourth proportional to 251,981.40, 377,972.10 and 133,591.80 is: 200,387.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,981.40 : 377,972.10 = 133,591.80 : x
  2. Step 2: Convert to fraction form
    251,981.40/377,972.10 = 133,591.80/x
  3. Step 3: Cross multiply
    251,981.40x = 377,972.10 × 133,591.80
  4. Step 4: Simplify right side
    251,981.40x = 50,493,973,188.78
  5. Step 5: Solve for x
    x = 50,493,973,188.78/251,981.40
  6. Step 6: Final answer
    x = 200,387.70

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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.