Home / 220,519.64-304,311.15-123,715.35

Finding the Fourth Proportional to 220,519.64, 304,311.15 and 123,715.35

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Solution

The fourth proportional to 220,519.64, 304,311.15 and 123,715.35 is: 170,723.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,519.64 : 304,311.15 = 123,715.35 : x
  2. Step 2: Convert to fraction form
    220,519.64/304,311.15 = 123,715.35/x
  3. Step 3: Cross multiply
    220,519.64x = 304,311.15 × 123,715.35
  4. Step 4: Simplify right side
    220,519.64x = 37,647,960,431.15
  5. Step 5: Solve for x
    x = 37,647,960,431.15/220,519.64
  6. Step 6: Final answer
    x = 170,723.85

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1.5x scale

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.