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Finding the Fourth Proportional to 228,128.52, 341,955.48 and 85,876.08

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Solution

The fourth proportional to 228,128.52, 341,955.48 and 85,876.08 is: 128,724.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,128.52 : 341,955.48 = 85,876.08 : x
  2. Step 2: Convert to fraction form
    228,128.52/341,955.48 = 85,876.08/x
  3. Step 3: Cross multiply
    228,128.52x = 341,955.48 × 85,876.08
  4. Step 4: Simplify right side
    228,128.52x = 29,365,796,156.92
  5. Step 5: Solve for x
    x = 29,365,796,156.92/228,128.52
  6. Step 6: Final answer
    x = 128,724.79

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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.