Home / 351,517.44-527,271.68-85,280

Finding the Fourth Proportional to 351,517.44, 527,271.68 and 85,280

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Solution

The fourth proportional to 351,517.44, 527,271.68 and 85,280 is: 127,918.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,517.44 : 527,271.68 = 85,280 : x
  2. Step 2: Convert to fraction form
    351,517.44/527,271.68 = 85,280/x
  3. Step 3: Cross multiply
    351,517.44x = 527,271.68 × 85,280
  4. Step 4: Simplify right side
    351,517.44x = 44,965,728,870.40
  5. Step 5: Solve for x
    x = 44,965,728,870.40/351,517.44
  6. Step 6: Final answer
    x = 127,918.91

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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.