Home / 279,391.52-385,568.64-172,023.50

Finding the Fourth Proportional to 279,391.52, 385,568.64 and 172,023.50

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Solution

The fourth proportional to 279,391.52, 385,568.64 and 172,023.50 is: 237,397.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,391.52 : 385,568.64 = 172,023.50 : x
  2. Step 2: Convert to fraction form
    279,391.52/385,568.64 = 172,023.50/x
  3. Step 3: Cross multiply
    279,391.52x = 385,568.64 × 172,023.50
  4. Step 4: Simplify right side
    279,391.52x = 66,326,865,015.20
  5. Step 5: Solve for x
    x = 66,326,865,015.20/279,391.52
  6. Step 6: Final answer
    x = 237,397.56

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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.