Home / 220,598.38-328,402.67-219,286.18

Finding the Fourth Proportional to 220,598.38, 328,402.67 and 219,286.18

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Solution

The fourth proportional to 220,598.38, 328,402.67 and 219,286.18 is: 326,449.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,598.38 : 328,402.67 = 219,286.18 : x
  2. Step 2: Convert to fraction form
    220,598.38/328,402.67 = 219,286.18/x
  3. Step 3: Cross multiply
    220,598.38x = 328,402.67 × 219,286.18
  4. Step 4: Simplify right side
    220,598.38x = 72,014,167,006.10
  5. Step 5: Solve for x
    x = 72,014,167,006.10/220,598.38
  6. Step 6: Final answer
    x = 326,449.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.