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Finding the Fourth Proportional to 308,763.74, 425,958.72 and 181,381.88

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Solution

The fourth proportional to 308,763.74, 425,958.72 and 181,381.88 is: 250,227.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,763.74 : 425,958.72 = 181,381.88 : x
  2. Step 2: Convert to fraction form
    308,763.74/425,958.72 = 181,381.88/x
  3. Step 3: Cross multiply
    308,763.74x = 425,958.72 × 181,381.88
  4. Step 4: Simplify right side
    308,763.74x = 77,261,193,435.99
  5. Step 5: Solve for x
    x = 77,261,193,435.99/308,763.74
  6. Step 6: Final answer
    x = 250,227.55

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1.5x scale

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.