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Finding the Fourth Proportional to 482,124.96, 665,338.46 and 278,218.20

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Solution

The fourth proportional to 482,124.96, 665,338.46 and 278,218.20 is: 383,944.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,124.96 : 665,338.46 = 278,218.20 : x
  2. Step 2: Convert to fraction form
    482,124.96/665,338.46 = 278,218.20/x
  3. Step 3: Cross multiply
    482,124.96x = 665,338.46 × 278,218.20
  4. Step 4: Simplify right side
    482,124.96x = 185,109,269,427.52
  5. Step 5: Solve for x
    x = 185,109,269,427.52/482,124.96
  6. Step 6: Final answer
    x = 383,944.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.