Home / 212,479.85-318,645.50-62,680.38

Finding the Fourth Proportional to 212,479.85, 318,645.50 and 62,680.38

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Solution

The fourth proportional to 212,479.85, 318,645.50 and 62,680.38 is: 93,998.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,479.85 : 318,645.50 = 62,680.38 : x
  2. Step 2: Convert to fraction form
    212,479.85/318,645.50 = 62,680.38/x
  3. Step 3: Cross multiply
    212,479.85x = 318,645.50 × 62,680.38
  4. Step 4: Simplify right side
    212,479.85x = 19,972,820,711.89
  5. Step 5: Solve for x
    x = 19,972,820,711.89/212,479.85
  6. Step 6: Final answer
    x = 93,998.66

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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.