Home / 231,036.48-318,794.40-130,432.32

Finding the Fourth Proportional to 231,036.48, 318,794.40 and 130,432.32

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Solution

The fourth proportional to 231,036.48, 318,794.40 and 130,432.32 is: 179,976.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,036.48 : 318,794.40 = 130,432.32 : x
  2. Step 2: Convert to fraction form
    231,036.48/318,794.40 = 130,432.32/x
  3. Step 3: Cross multiply
    231,036.48x = 318,794.40 × 130,432.32
  4. Step 4: Simplify right side
    231,036.48x = 41,581,093,195.01
  5. Step 5: Solve for x
    x = 41,581,093,195.01/231,036.48
  6. Step 6: Final answer
    x = 179,976.31

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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.