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Finding the Fourth Proportional to 491,381.98, 737,077.10 and 136,423.68

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Solution

The fourth proportional to 491,381.98, 737,077.10 and 136,423.68 is: 204,636.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,381.98 : 737,077.10 = 136,423.68 : x
  2. Step 2: Convert to fraction form
    491,381.98/737,077.10 = 136,423.68/x
  3. Step 3: Cross multiply
    491,381.98x = 737,077.10 × 136,423.68
  4. Step 4: Simplify right side
    491,381.98x = 100,554,770,084.67
  5. Step 5: Solve for x
    x = 100,554,770,084.67/491,381.98
  6. Step 6: Final answer
    x = 204,636.67

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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.