Home / 267,278.40-398,226.51-263,429.28

Finding the Fourth Proportional to 267,278.40, 398,226.51 and 263,429.28

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Solution

The fourth proportional to 267,278.40, 398,226.51 and 263,429.28 is: 392,491.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,278.40 : 398,226.51 = 263,429.28 : x
  2. Step 2: Convert to fraction form
    267,278.40/398,226.51 = 263,429.28/x
  3. Step 3: Cross multiply
    267,278.40x = 398,226.51 × 263,429.28
  4. Step 4: Simplify right side
    267,278.40x = 104,904,522,806.21
  5. Step 5: Solve for x
    x = 104,904,522,806.21/267,278.40
  6. Step 6: Final answer
    x = 392,491.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.