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Finding the Fourth Proportional to 228,440.52, 315,285.36 and 156,761.64

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Solution

The fourth proportional to 228,440.52, 315,285.36 and 156,761.64 is: 216,356.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,440.52 : 315,285.36 = 156,761.64 : x
  2. Step 2: Convert to fraction form
    228,440.52/315,285.36 = 156,761.64/x
  3. Step 3: Cross multiply
    228,440.52x = 315,285.36 × 156,761.64
  4. Step 4: Simplify right side
    228,440.52x = 49,424,650,101.59
  5. Step 5: Solve for x
    x = 49,424,650,101.59/228,440.52
  6. Step 6: Final answer
    x = 216,356.76

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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.