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Finding the Fourth Proportional to 360,038.80, 538,891.80 and 255,062.80

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Solution

The fourth proportional to 360,038.80, 538,891.80 and 255,062.80 is: 381,767.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,038.80 : 538,891.80 = 255,062.80 : x
  2. Step 2: Convert to fraction form
    360,038.80/538,891.80 = 255,062.80/x
  3. Step 3: Cross multiply
    360,038.80x = 538,891.80 × 255,062.80
  4. Step 4: Simplify right side
    360,038.80x = 137,451,251,405.04
  5. Step 5: Solve for x
    x = 137,451,251,405.04/360,038.80
  6. Step 6: Final answer
    x = 381,767.89

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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.