Home / 385,723.68-532,253.22-222,378.39

Finding the Fourth Proportional to 385,723.68, 532,253.22 and 222,378.39

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Solution

The fourth proportional to 385,723.68, 532,253.22 and 222,378.39 is: 306,855.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,723.68 : 532,253.22 = 222,378.39 : x
  2. Step 2: Convert to fraction form
    385,723.68/532,253.22 = 222,378.39/x
  3. Step 3: Cross multiply
    385,723.68x = 532,253.22 × 222,378.39
  4. Step 4: Simplify right side
    385,723.68x = 118,361,614,135.92
  5. Step 5: Solve for x
    x = 118,361,614,135.92/385,723.68
  6. Step 6: Final answer
    x = 306,855.97

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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.