Home / 215,462.15-323,215.30-82,454.28

Finding the Fourth Proportional to 215,462.15, 323,215.30 and 82,454.28

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Solution

The fourth proportional to 215,462.15, 323,215.30 and 82,454.28 is: 123,689.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,462.15 : 323,215.30 = 82,454.28 : x
  2. Step 2: Convert to fraction form
    215,462.15/323,215.30 = 82,454.28/x
  3. Step 3: Cross multiply
    215,462.15x = 323,215.30 × 82,454.28
  4. Step 4: Simplify right side
    215,462.15x = 26,650,484,846.48
  5. Step 5: Solve for x
    x = 26,650,484,846.48/215,462.15
  6. Step 6: Final answer
    x = 123,689.87

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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.