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Finding the Fourth Proportional to 491,240.12, 736,860.11 and 136,254.13

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Solution

The fourth proportional to 491,240.12, 736,860.11 and 136,254.13 is: 204,381.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,240.12 : 736,860.11 = 136,254.13 : x
  2. Step 2: Convert to fraction form
    491,240.12/736,860.11 = 136,254.13/x
  3. Step 3: Cross multiply
    491,240.12x = 736,860.11 × 136,254.13
  4. Step 4: Simplify right side
    491,240.12x = 100,400,235,607.60
  5. Step 5: Solve for x
    x = 100,400,235,607.60/491,240.12
  6. Step 6: Final answer
    x = 204,381.18

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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.