Home / 219,034.20-328,591.86-69,312.18

Finding the Fourth Proportional to 219,034.20, 328,591.86 and 69,312.18

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Solution

The fourth proportional to 219,034.20, 328,591.86 and 69,312.18 is: 103,981.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,034.20 : 328,591.86 = 69,312.18 : x
  2. Step 2: Convert to fraction form
    219,034.20/328,591.86 = 69,312.18/x
  3. Step 3: Cross multiply
    219,034.20x = 328,591.86 × 69,312.18
  4. Step 4: Simplify right side
    219,034.20x = 22,775,418,146.85
  5. Step 5: Solve for x
    x = 22,775,418,146.85/219,034.20
  6. Step 6: Final answer
    x = 103,981.10

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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.