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Finding the Fourth Proportional to 251,997.40, 377,996.10 and 133,607.80

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Solution

The fourth proportional to 251,997.40, 377,996.10 and 133,607.80 is: 200,411.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,997.40 : 377,996.10 = 133,607.80 : x
  2. Step 2: Convert to fraction form
    251,997.40/377,996.10 = 133,607.80/x
  3. Step 3: Cross multiply
    251,997.40x = 377,996.10 × 133,607.80
  4. Step 4: Simplify right side
    251,997.40x = 50,503,227,329.58
  5. Step 5: Solve for x
    x = 50,503,227,329.58/251,997.40
  6. Step 6: Final answer
    x = 200,411.70

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1.5x scale

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.