Home / 211,261.76-316,679.28-132,431.24

Finding the Fourth Proportional to 211,261.76, 316,679.28 and 132,431.24

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Solution

The fourth proportional to 211,261.76, 316,679.28 and 132,431.24 is: 198,513.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,261.76 : 316,679.28 = 132,431.24 : x
  2. Step 2: Convert to fraction form
    211,261.76/316,679.28 = 132,431.24/x
  3. Step 3: Cross multiply
    211,261.76x = 316,679.28 × 132,431.24
  4. Step 4: Simplify right side
    211,261.76x = 41,938,229,732.71
  5. Step 5: Solve for x
    x = 41,938,229,732.71/211,261.76
  6. Step 6: Final answer
    x = 198,513.11

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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.