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Finding the Fourth Proportional to 215,265.76, 322,860.48 and 65,469.76

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Solution

The fourth proportional to 215,265.76, 322,860.48 and 65,469.76 is: 98,193.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,265.76 : 322,860.48 = 65,469.76 : x
  2. Step 2: Convert to fraction form
    215,265.76/322,860.48 = 65,469.76/x
  3. Step 3: Cross multiply
    215,265.76x = 322,860.48 × 65,469.76
  4. Step 4: Simplify right side
    215,265.76x = 21,137,598,139.08
  5. Step 5: Solve for x
    x = 21,137,598,139.08/215,265.76
  6. Step 6: Final answer
    x = 98,193.03

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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.