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Finding the Fourth Proportional to 235,324.80, 353,181.60 and 109,159.20

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Solution

The fourth proportional to 235,324.80, 353,181.60 and 109,159.20 is: 163,828.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,324.80 : 353,181.60 = 109,159.20 : x
  2. Step 2: Convert to fraction form
    235,324.80/353,181.60 = 109,159.20/x
  3. Step 3: Cross multiply
    235,324.80x = 353,181.60 × 109,159.20
  4. Step 4: Simplify right side
    235,324.80x = 38,553,020,910.72
  5. Step 5: Solve for x
    x = 38,553,020,910.72/235,324.80
  6. Step 6: Final answer
    x = 163,828.98

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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.