Home / 323,979.20-485,965.92-87,302.24

Finding the Fourth Proportional to 323,979.20, 485,965.92 and 87,302.24

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Solution

The fourth proportional to 323,979.20, 485,965.92 and 87,302.24 is: 130,952.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,979.20 : 485,965.92 = 87,302.24 : x
  2. Step 2: Convert to fraction form
    323,979.20/485,965.92 = 87,302.24/x
  3. Step 3: Cross multiply
    323,979.20x = 485,965.92 × 87,302.24
  4. Step 4: Simplify right side
    323,979.20x = 42,425,913,379.66
  5. Step 5: Solve for x
    x = 42,425,913,379.66/323,979.20
  6. Step 6: Final answer
    x = 130,952.58

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1.5x scale

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.