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Finding the Fourth Proportional to 230,490.52, 317,865.54 and 157,998.76

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Solution

The fourth proportional to 230,490.52, 317,865.54 and 157,998.76 is: 217,893.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,490.52 : 317,865.54 = 157,998.76 : x
  2. Step 2: Convert to fraction form
    230,490.52/317,865.54 = 157,998.76/x
  3. Step 3: Cross multiply
    230,490.52x = 317,865.54 × 157,998.76
  4. Step 4: Simplify right side
    230,490.52x = 50,222,361,166.73
  5. Step 5: Solve for x
    x = 50,222,361,166.73/230,490.52
  6. Step 6: Final answer
    x = 217,893.39

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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.