Home / 231,360.28-319,293.46-129,395.23

Finding the Fourth Proportional to 231,360.28, 319,293.46 and 129,395.23

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Solution

The fourth proportional to 231,360.28, 319,293.46 and 129,395.23 is: 178,574.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,360.28 : 319,293.46 = 129,395.23 : x
  2. Step 2: Convert to fraction form
    231,360.28/319,293.46 = 129,395.23/x
  3. Step 3: Cross multiply
    231,360.28x = 319,293.46 × 129,395.23
  4. Step 4: Simplify right side
    231,360.28x = 41,315,048,450.75
  5. Step 5: Solve for x
    x = 41,315,048,450.75/231,360.28
  6. Step 6: Final answer
    x = 178,574.51

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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.