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Finding the Fourth Proportional to 228,801.52, 315,766.92 and 138,202.48

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Solution

The fourth proportional to 228,801.52, 315,766.92 and 138,202.48 is: 190,732.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,801.52 : 315,766.92 = 138,202.48 : x
  2. Step 2: Convert to fraction form
    228,801.52/315,766.92 = 138,202.48/x
  3. Step 3: Cross multiply
    228,801.52x = 315,766.92 × 138,202.48
  4. Step 4: Simplify right side
    228,801.52x = 43,639,771,445.96
  5. Step 5: Solve for x
    x = 43,639,771,445.96/228,801.52
  6. Step 6: Final answer
    x = 190,732.00

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1.5x scale

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.