Home / 231,475.28-319,329.96-135,980.24

Finding the Fourth Proportional to 231,475.28, 319,329.96 and 135,980.24

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Solution

The fourth proportional to 231,475.28, 319,329.96 and 135,980.24 is: 187,590.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,475.28 : 319,329.96 = 135,980.24 : x
  2. Step 2: Convert to fraction form
    231,475.28/319,329.96 = 135,980.24/x
  3. Step 3: Cross multiply
    231,475.28x = 319,329.96 × 135,980.24
  4. Step 4: Simplify right side
    231,475.28x = 43,422,564,599.99
  5. Step 5: Solve for x
    x = 43,422,564,599.99/231,475.28
  6. Step 6: Final answer
    x = 187,590.50

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1.5x scale

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.