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Finding the Fourth Proportional to 482,363.30, 665,613.32 and 278,480.03

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Solution

The fourth proportional to 482,363.30, 665,613.32 and 278,480.03 is: 384,274.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,363.30 : 665,613.32 = 278,480.03 : x
  2. Step 2: Convert to fraction form
    482,363.30/665,613.32 = 278,480.03/x
  3. Step 3: Cross multiply
    482,363.30x = 665,613.32 × 278,480.03
  4. Step 4: Simplify right side
    482,363.30x = 185,360,012,601.53
  5. Step 5: Solve for x
    x = 185,360,012,601.53/482,363.30
  6. Step 6: Final answer
    x = 384,274.70

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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.