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Finding the Fourth Proportional to 277,294.59, 382,319.78 and 231,420.21

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Solution

The fourth proportional to 277,294.59, 382,319.78 and 231,420.21 is: 319,070.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,294.59 : 382,319.78 = 231,420.21 : x
  2. Step 2: Convert to fraction form
    277,294.59/382,319.78 = 231,420.21/x
  3. Step 3: Cross multiply
    277,294.59x = 382,319.78 × 231,420.21
  4. Step 4: Simplify right side
    277,294.59x = 88,476,524,353.30
  5. Step 5: Solve for x
    x = 88,476,524,353.30/277,294.59
  6. Step 6: Final answer
    x = 319,070.51

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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.