Home / 231,318.24-319,183.92-130,679.52

Finding the Fourth Proportional to 231,318.24, 319,183.92 and 130,679.52

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Solution

The fourth proportional to 231,318.24, 319,183.92 and 130,679.52 is: 180,317.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,318.24 : 319,183.92 = 130,679.52 : x
  2. Step 2: Convert to fraction form
    231,318.24/319,183.92 = 130,679.52/x
  3. Step 3: Cross multiply
    231,318.24x = 319,183.92 × 130,679.52
  4. Step 4: Simplify right side
    231,318.24x = 41,710,801,457.32
  5. Step 5: Solve for x
    x = 41,710,801,457.32/231,318.24
  6. Step 6: Final answer
    x = 180,317.82

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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.