Home / 355,422.80-533,134.19-142,286.66

Finding the Fourth Proportional to 355,422.80, 533,134.19 and 142,286.66

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Solution

The fourth proportional to 355,422.80, 533,134.19 and 142,286.66 is: 213,429.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,422.80 : 533,134.19 = 142,286.66 : x
  2. Step 2: Convert to fraction form
    355,422.80/533,134.19 = 142,286.66/x
  3. Step 3: Cross multiply
    355,422.80x = 533,134.19 × 142,286.66
  4. Step 4: Simplify right side
    355,422.80x = 75,857,882,916.20
  5. Step 5: Solve for x
    x = 75,857,882,916.20/355,422.80
  6. Step 6: Final answer
    x = 213,429.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.