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Finding the Fourth Proportional to 235,116.60, 352,707.30 and 85,320.60

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Solution

The fourth proportional to 235,116.60, 352,707.30 and 85,320.60 is: 127,992.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,116.60 : 352,707.30 = 85,320.60 : x
  2. Step 2: Convert to fraction form
    235,116.60/352,707.30 = 85,320.60/x
  3. Step 3: Cross multiply
    235,116.60x = 352,707.30 × 85,320.60
  4. Step 4: Simplify right side
    235,116.60x = 30,093,198,460.38
  5. Step 5: Solve for x
    x = 30,093,198,460.38/235,116.60
  6. Step 6: Final answer
    x = 127,992.66

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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.