Home / 385,836.70-532,442.28-213,747.61

Finding the Fourth Proportional to 385,836.70, 532,442.28 and 213,747.61

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Solution

The fourth proportional to 385,836.70, 532,442.28 and 213,747.61 is: 294,964.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,836.70 : 532,442.28 = 213,747.61 : x
  2. Step 2: Convert to fraction form
    385,836.70/532,442.28 = 213,747.61/x
  3. Step 3: Cross multiply
    385,836.70x = 532,442.28 × 213,747.61
  4. Step 4: Simplify right side
    385,836.70x = 113,808,264,812.95
  5. Step 5: Solve for x
    x = 113,808,264,812.95/385,836.70
  6. Step 6: Final answer
    x = 294,964.85

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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.