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Finding the Fourth Proportional to 212,306.88, 318,197.88 and 107,155.92

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Solution

The fourth proportional to 212,306.88, 318,197.88 and 107,155.92 is: 160,601.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,306.88 : 318,197.88 = 107,155.92 : x
  2. Step 2: Convert to fraction form
    212,306.88/318,197.88 = 107,155.92/x
  3. Step 3: Cross multiply
    212,306.88x = 318,197.88 × 107,155.92
  4. Step 4: Simplify right side
    212,306.88x = 34,096,786,573.45
  5. Step 5: Solve for x
    x = 34,096,786,573.45/212,306.88
  6. Step 6: Final answer
    x = 160,601.42

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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.