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Finding the Fourth Proportional to 351,275.92, 526,915.24 and 85,036

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Solution

The fourth proportional to 351,275.92, 526,915.24 and 85,036 is: 127,554.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,275.92 : 526,915.24 = 85,036 : x
  2. Step 2: Convert to fraction form
    351,275.92/526,915.24 = 85,036/x
  3. Step 3: Cross multiply
    351,275.92x = 526,915.24 × 85,036
  4. Step 4: Simplify right side
    351,275.92x = 44,806,764,348.64
  5. Step 5: Solve for x
    x = 44,806,764,348.64/351,275.92
  6. Step 6: Final answer
    x = 127,554.33

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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.