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Finding the Fourth Proportional to 285,606.16, 427,610.52 and 215,265.04

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Solution

The fourth proportional to 285,606.16, 427,610.52 and 215,265.04 is: 322,295.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,606.16 : 427,610.52 = 215,265.04 : x
  2. Step 2: Convert to fraction form
    285,606.16/427,610.52 = 215,265.04/x
  3. Step 3: Cross multiply
    285,606.16x = 427,610.52 × 215,265.04
  4. Step 4: Simplify right side
    285,606.16x = 92,049,595,692.22
  5. Step 5: Solve for x
    x = 92,049,595,692.22/285,606.16
  6. Step 6: Final answer
    x = 322,295.55

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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.