Home / 211,262.31-316,680.23-132,431.90

Finding the Fourth Proportional to 211,262.31, 316,680.23 and 132,431.90

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Solution

The fourth proportional to 211,262.31, 316,680.23 and 132,431.90 is: 198,514.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,262.31 : 316,680.23 = 132,431.90 : x
  2. Step 2: Convert to fraction form
    211,262.31/316,680.23 = 132,431.90/x
  3. Step 3: Cross multiply
    211,262.31x = 316,680.23 × 132,431.90
  4. Step 4: Simplify right side
    211,262.31x = 41,938,563,299.02
  5. Step 5: Solve for x
    x = 41,938,563,299.02/211,262.31
  6. Step 6: Final answer
    x = 198,514.18

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1.5x scale

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.