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Finding the Fourth Proportional to 228,512.40, 342,077.40 and 203,629.20

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Solution

The fourth proportional to 228,512.40, 342,077.40 and 203,629.20 is: 304,827.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,512.40 : 342,077.40 = 203,629.20 : x
  2. Step 2: Convert to fraction form
    228,512.40/342,077.40 = 203,629.20/x
  3. Step 3: Cross multiply
    228,512.40x = 342,077.40 × 203,629.20
  4. Step 4: Simplify right side
    228,512.40x = 69,656,947,300.08
  5. Step 5: Solve for x
    x = 69,656,947,300.08/228,512.40
  6. Step 6: Final answer
    x = 304,827.87

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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.