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Finding the Fourth Proportional to 491,325.77, 736,989.02 and 136,340.13

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Solution

The fourth proportional to 491,325.77, 736,989.02 and 136,340.13 is: 204,510.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,325.77 : 736,989.02 = 136,340.13 : x
  2. Step 2: Convert to fraction form
    491,325.77/736,989.02 = 136,340.13/x
  3. Step 3: Cross multiply
    491,325.77x = 736,989.02 × 136,340.13
  4. Step 4: Simplify right side
    491,325.77x = 100,481,178,113.67
  5. Step 5: Solve for x
    x = 100,481,178,113.67/491,325.77
  6. Step 6: Final answer
    x = 204,510.30

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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.