Home / 382,499.30-527,867.70-212,729.78

Finding the Fourth Proportional to 382,499.30, 527,867.70 and 212,729.78

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Solution

The fourth proportional to 382,499.30, 527,867.70 and 212,729.78 is: 293,577.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,499.30 : 527,867.70 = 212,729.78 : x
  2. Step 2: Convert to fraction form
    382,499.30/527,867.70 = 212,729.78/x
  3. Step 3: Cross multiply
    382,499.30x = 527,867.70 × 212,729.78
  4. Step 4: Simplify right side
    382,499.30x = 112,293,179,690.11
  5. Step 5: Solve for x
    x = 112,293,179,690.11/382,499.30
  6. Step 6: Final answer
    x = 293,577.48

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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.