Home / 218,966.20-328,595.10-100,576.60

Finding the Fourth Proportional to 218,966.20, 328,595.10 and 100,576.60

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Solution

The fourth proportional to 218,966.20, 328,595.10 and 100,576.60 is: 150,931.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,966.20 : 328,595.10 = 100,576.60 : x
  2. Step 2: Convert to fraction form
    218,966.20/328,595.10 = 100,576.60/x
  3. Step 3: Cross multiply
    218,966.20x = 328,595.10 × 100,576.60
  4. Step 4: Simplify right side
    218,966.20x = 33,048,977,934.66
  5. Step 5: Solve for x
    x = 33,048,977,934.66/218,966.20
  6. Step 6: Final answer
    x = 150,931.87

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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.