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Finding the Fourth Proportional to 286,354.56, 394,822.20 and 247,522.38

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Solution

The fourth proportional to 286,354.56, 394,822.20 and 247,522.38 is: 341,280.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,354.56 : 394,822.20 = 247,522.38 : x
  2. Step 2: Convert to fraction form
    286,354.56/394,822.20 = 247,522.38/x
  3. Step 3: Cross multiply
    286,354.56x = 394,822.20 × 247,522.38
  4. Step 4: Simplify right side
    286,354.56x = 97,727,330,620.84
  5. Step 5: Solve for x
    x = 97,727,330,620.84/286,354.56
  6. Step 6: Final answer
    x = 341,280.86

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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.