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Finding the Fourth Proportional to 235,085.82, 352,627.95 and 85,325.91

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Solution

The fourth proportional to 235,085.82, 352,627.95 and 85,325.91 is: 127,988.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,085.82 : 352,627.95 = 85,325.91 : x
  2. Step 2: Convert to fraction form
    235,085.82/352,627.95 = 85,325.91/x
  3. Step 3: Cross multiply
    235,085.82x = 352,627.95 × 85,325.91
  4. Step 4: Simplify right side
    235,085.82x = 30,088,300,725.18
  5. Step 5: Solve for x
    x = 30,088,300,725.18/235,085.82
  6. Step 6: Final answer
    x = 127,988.58

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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.