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Finding the Fourth Proportional to 251,581, 377,260.80 and 133,224.72

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Solution

The fourth proportional to 251,581, 377,260.80 and 133,224.72 is: 199,778.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,581 : 377,260.80 = 133,224.72 : x
  2. Step 2: Convert to fraction form
    251,581/377,260.80 = 133,224.72/x
  3. Step 3: Cross multiply
    251,581x = 377,260.80 × 133,224.72
  4. Step 4: Simplify right side
    251,581x = 50,260,464,446.98
  5. Step 5: Solve for x
    x = 50,260,464,446.98/251,581
  6. Step 6: Final answer
    x = 199,778.46

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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.