Home / 212,849.46-319,306.98-72,575.28

Finding the Fourth Proportional to 212,849.46, 319,306.98 and 72,575.28

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Solution

The fourth proportional to 212,849.46, 319,306.98 and 72,575.28 is: 108,874.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,849.46 : 319,306.98 = 72,575.28 : x
  2. Step 2: Convert to fraction form
    212,849.46/319,306.98 = 72,575.28/x
  3. Step 3: Cross multiply
    212,849.46x = 319,306.98 × 72,575.28
  4. Step 4: Simplify right side
    212,849.46x = 23,173,793,479.45
  5. Step 5: Solve for x
    x = 23,173,793,479.45/212,849.46
  6. Step 6: Final answer
    x = 108,874.10

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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.