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Finding the Fourth Proportional to 315,893.92, 435,883.20 and 179,930.52

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Solution

The fourth proportional to 315,893.92, 435,883.20 and 179,930.52 is: 248,275.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,893.92 : 435,883.20 = 179,930.52 : x
  2. Step 2: Convert to fraction form
    315,893.92/435,883.20 = 179,930.52/x
  3. Step 3: Cross multiply
    315,893.92x = 435,883.20 × 179,930.52
  4. Step 4: Simplify right side
    315,893.92x = 78,428,690,835.26
  5. Step 5: Solve for x
    x = 78,428,690,835.26/315,893.92
  6. Step 6: Final answer
    x = 248,275.40

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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.