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Finding the Fourth Proportional to 228,397.70, 342,370.56 and 108,243.47

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Solution

The fourth proportional to 228,397.70, 342,370.56 and 108,243.47 is: 162,258.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,397.70 : 342,370.56 = 108,243.47 : x
  2. Step 2: Convert to fraction form
    228,397.70/342,370.56 = 108,243.47/x
  3. Step 3: Cross multiply
    228,397.70x = 342,370.56 × 108,243.47
  4. Step 4: Simplify right side
    228,397.70x = 37,059,378,702.08
  5. Step 5: Solve for x
    x = 37,059,378,702.08/228,397.70
  6. Step 6: Final answer
    x = 162,258.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.