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Finding the Fourth Proportional to 491,240.96, 736,861.38 and 136,254.98

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Solution

The fourth proportional to 491,240.96, 736,861.38 and 136,254.98 is: 204,382.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,240.96 : 736,861.38 = 136,254.98 : x
  2. Step 2: Convert to fraction form
    491,240.96/736,861.38 = 136,254.98/x
  3. Step 3: Cross multiply
    491,240.96x = 736,861.38 × 136,254.98
  4. Step 4: Simplify right side
    491,240.96x = 100,401,029,781.02
  5. Step 5: Solve for x
    x = 100,401,029,781.02/491,240.96
  6. Step 6: Final answer
    x = 204,382.45

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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.