Home / 231,450.40-319,397.28-130,848.32

Finding the Fourth Proportional to 231,450.40, 319,397.28 and 130,848.32

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Solution

The fourth proportional to 231,450.40, 319,397.28 and 130,848.32 is: 180,568.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,450.40 : 319,397.28 = 130,848.32 : x
  2. Step 2: Convert to fraction form
    231,450.40/319,397.28 = 130,848.32/x
  3. Step 3: Cross multiply
    231,450.40x = 319,397.28 × 130,848.32
  4. Step 4: Simplify right side
    231,450.40x = 41,792,597,500.57
  5. Step 5: Solve for x
    x = 41,792,597,500.57/231,450.40
  6. Step 6: Final answer
    x = 180,568.27

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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.