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Finding the Fourth Proportional to 322,326.77, 482,702.63 and 278,236.85

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Solution

The fourth proportional to 322,326.77, 482,702.63 and 278,236.85 is: 416,675.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,326.77 : 482,702.63 = 278,236.85 : x
  2. Step 2: Convert to fraction form
    322,326.77/482,702.63 = 278,236.85/x
  3. Step 3: Cross multiply
    322,326.77x = 482,702.63 × 278,236.85
  4. Step 4: Simplify right side
    322,326.77x = 134,305,655,453.22
  5. Step 5: Solve for x
    x = 134,305,655,453.22/322,326.77
  6. Step 6: Final answer
    x = 416,675.47

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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.