Home / 351,928.80-527,888.40-115,279.20

Finding the Fourth Proportional to 351,928.80, 527,888.40 and 115,279.20

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Solution

The fourth proportional to 351,928.80, 527,888.40 and 115,279.20 is: 172,917.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,928.80 : 527,888.40 = 115,279.20 : x
  2. Step 2: Convert to fraction form
    351,928.80/527,888.40 = 115,279.20/x
  3. Step 3: Cross multiply
    351,928.80x = 527,888.40 × 115,279.20
  4. Step 4: Simplify right side
    351,928.80x = 60,854,552,441.28
  5. Step 5: Solve for x
    x = 60,854,552,441.28/351,928.80
  6. Step 6: Final answer
    x = 172,917.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.