Home / 385,722.12-532,251.02-222,376.80

Finding the Fourth Proportional to 385,722.12, 532,251.02 and 222,376.80

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Solution

The fourth proportional to 385,722.12, 532,251.02 and 222,376.80 is: 306,853.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,722.12 : 532,251.02 = 222,376.80 : x
  2. Step 2: Convert to fraction form
    385,722.12/532,251.02 = 222,376.80/x
  3. Step 3: Cross multiply
    385,722.12x = 532,251.02 × 222,376.80
  4. Step 4: Simplify right side
    385,722.12x = 118,360,278,624.34
  5. Step 5: Solve for x
    x = 118,360,278,624.34/385,722.12
  6. Step 6: Final answer
    x = 306,853.75

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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.