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Finding the Fourth Proportional to 228,262.59, 315,103.28 and 136,414.29

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Solution

The fourth proportional to 228,262.59, 315,103.28 and 136,414.29 is: 188,312.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,262.59 : 315,103.28 = 136,414.29 : x
  2. Step 2: Convert to fraction form
    228,262.59/315,103.28 = 136,414.29/x
  3. Step 3: Cross multiply
    228,262.59x = 315,103.28 × 136,414.29
  4. Step 4: Simplify right side
    228,262.59x = 42,984,590,217.87
  5. Step 5: Solve for x
    x = 42,984,590,217.87/228,262.59
  6. Step 6: Final answer
    x = 188,312.02

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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.