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Finding the Fourth Proportional to 482,177.34, 665,410.82 and 278,270.64

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Solution

The fourth proportional to 482,177.34, 665,410.82 and 278,270.64 is: 384,017.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,177.34 : 665,410.82 = 278,270.64 : x
  2. Step 2: Convert to fraction form
    482,177.34/665,410.82 = 278,270.64/x
  3. Step 3: Cross multiply
    482,177.34x = 665,410.82 × 278,270.64
  4. Step 4: Simplify right side
    482,177.34x = 185,164,293,352.97
  5. Step 5: Solve for x
    x = 185,164,293,352.97/482,177.34
  6. Step 6: Final answer
    x = 384,017.00

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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.