Home / 439,312.16-658,718.28-172,928.24

Finding the Fourth Proportional to 439,312.16, 658,718.28 and 172,928.24

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Solution

The fourth proportional to 439,312.16, 658,718.28 and 172,928.24 is: 259,293.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,312.16 : 658,718.28 = 172,928.24 : x
  2. Step 2: Convert to fraction form
    439,312.16/658,718.28 = 172,928.24/x
  3. Step 3: Cross multiply
    439,312.16x = 658,718.28 × 172,928.24
  4. Step 4: Simplify right side
    439,312.16x = 113,910,992,816.23
  5. Step 5: Solve for x
    x = 113,910,992,816.23/439,312.16
  6. Step 6: Final answer
    x = 259,293.97

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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.