Home / 812,117.30-1,218,175.95-251,151.80

Finding the Fourth Proportional to 812,117.30, 1,218,175.95 and 251,151.80

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Solution

The fourth proportional to 812,117.30, 1,218,175.95 and 251,151.80 is: 376,727.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,117.30 : 1,218,175.95 = 251,151.80 : x
  2. Step 2: Convert to fraction form
    812,117.30/1,218,175.95 = 251,151.80/x
  3. Step 3: Cross multiply
    812,117.30x = 1,218,175.95 × 251,151.80
  4. Step 4: Simplify right side
    812,117.30x = 305,947,082,559.21
  5. Step 5: Solve for x
    x = 305,947,082,559.21/812,117.30
  6. Step 6: Final answer
    x = 376,727.70

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Similar ratio
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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.