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Finding the Fourth Proportional to 605,092, 908,052.72 and 211,108

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Solution

The fourth proportional to 605,092, 908,052.72 and 211,108 is: 316,806.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,092 : 908,052.72 = 211,108 : x
  2. Step 2: Convert to fraction form
    605,092/908,052.72 = 211,108/x
  3. Step 3: Cross multiply
    605,092x = 908,052.72 × 211,108
  4. Step 4: Simplify right side
    605,092x = 191,697,193,613.76
  5. Step 5: Solve for x
    x = 191,697,193,613.76/605,092
  6. Step 6: Final answer
    x = 316,806.69

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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.