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Finding the Fourth Proportional to 251,574, 377,250.30 and 133,217.70

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Solution

The fourth proportional to 251,574, 377,250.30 and 133,217.70 is: 199,767.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,574 : 377,250.30 = 133,217.70 : x
  2. Step 2: Convert to fraction form
    251,574/377,250.30 = 133,217.70/x
  3. Step 3: Cross multiply
    251,574x = 377,250.30 × 133,217.70
  4. Step 4: Simplify right side
    251,574x = 50,256,417,290.31
  5. Step 5: Solve for x
    x = 50,256,417,290.31/251,574
  6. Step 6: Final answer
    x = 199,767.93

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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.