Home / 385,729.59-532,303.32-215,966.55

Finding the Fourth Proportional to 385,729.59, 532,303.32 and 215,966.55

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Solution

The fourth proportional to 385,729.59, 532,303.32 and 215,966.55 is: 298,031.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,729.59 : 532,303.32 = 215,966.55 : x
  2. Step 2: Convert to fraction form
    385,729.59/532,303.32 = 215,966.55/x
  3. Step 3: Cross multiply
    385,729.59x = 532,303.32 × 215,966.55
  4. Step 4: Simplify right side
    385,729.59x = 114,959,711,573.95
  5. Step 5: Solve for x
    x = 114,959,711,573.95/385,729.59
  6. Step 6: Final answer
    x = 298,031.87

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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.