Home / 218,814.85-328,222.28-130,022.65

Finding the Fourth Proportional to 218,814.85, 328,222.28 and 130,022.65

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Solution

The fourth proportional to 218,814.85, 328,222.28 and 130,022.65 is: 195,033.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,814.85 : 328,222.28 = 130,022.65 : x
  2. Step 2: Convert to fraction form
    218,814.85/328,222.28 = 130,022.65/x
  3. Step 3: Cross multiply
    218,814.85x = 328,222.28 × 130,022.65
  4. Step 4: Simplify right side
    218,814.85x = 42,676,329,984.53
  5. Step 5: Solve for x
    x = 42,676,329,984.53/218,814.85
  6. Step 6: Final answer
    x = 195,033.98

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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.