Home / 811,151.20-1,216,320.72-250,112.80

Finding the Fourth Proportional to 811,151.20, 1,216,320.72 and 250,112.80

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Solution

The fourth proportional to 811,151.20, 1,216,320.72 and 250,112.80 is: 375,043.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,151.20 : 1,216,320.72 = 250,112.80 : x
  2. Step 2: Convert to fraction form
    811,151.20/1,216,320.72 = 250,112.80/x
  3. Step 3: Cross multiply
    811,151.20x = 1,216,320.72 × 250,112.80
  4. Step 4: Simplify right side
    811,151.20x = 304,217,380,977.22
  5. Step 5: Solve for x
    x = 304,217,380,977.22/811,151.20
  6. Step 6: Final answer
    x = 375,043.99

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1.5x scale

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.