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Finding the Fourth Proportional to 228,565.52, 315,453.48 and 127,970

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Solution

The fourth proportional to 228,565.52, 315,453.48 and 127,970 is: 176,617.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,565.52 : 315,453.48 = 127,970 : x
  2. Step 2: Convert to fraction form
    228,565.52/315,453.48 = 127,970/x
  3. Step 3: Cross multiply
    228,565.52x = 315,453.48 × 127,970
  4. Step 4: Simplify right side
    228,565.52x = 40,368,581,835.60
  5. Step 5: Solve for x
    x = 40,368,581,835.60/228,565.52
  6. Step 6: Final answer
    x = 176,617.11

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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.