Home / 385,719.12-532,246.88-222,373.80

Finding the Fourth Proportional to 385,719.12, 532,246.88 and 222,373.80

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Solution

The fourth proportional to 385,719.12, 532,246.88 and 222,373.80 is: 306,849.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,719.12 : 532,246.88 = 222,373.80 : x
  2. Step 2: Convert to fraction form
    385,719.12/532,246.88 = 222,373.80/x
  3. Step 3: Cross multiply
    385,719.12x = 532,246.88 × 222,373.80
  4. Step 4: Simplify right side
    385,719.12x = 118,357,761,243.74
  5. Step 5: Solve for x
    x = 118,357,761,243.74/385,719.12
  6. Step 6: Final answer
    x = 306,849.61

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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.