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Finding the Fourth Proportional to 253,445.52, 380,252.64 and 84,982.44

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Solution

The fourth proportional to 253,445.52, 380,252.64 and 84,982.44 is: 127,501.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,445.52 : 380,252.64 = 84,982.44 : x
  2. Step 2: Convert to fraction form
    253,445.52/380,252.64 = 84,982.44/x
  3. Step 3: Cross multiply
    253,445.52x = 380,252.64 × 84,982.44
  4. Step 4: Simplify right side
    253,445.52x = 32,314,797,163.64
  5. Step 5: Solve for x
    x = 32,314,797,163.64/253,445.52
  6. Step 6: Final answer
    x = 127,501.95

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1.5x scale

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.