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Finding the Fourth Proportional to 216,758.88, 325,196.76 and 90,357.12

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Solution

The fourth proportional to 216,758.88, 325,196.76 and 90,357.12 is: 135,560.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,758.88 : 325,196.76 = 90,357.12 : x
  2. Step 2: Convert to fraction form
    216,758.88/325,196.76 = 90,357.12/x
  3. Step 3: Cross multiply
    216,758.88x = 325,196.76 × 90,357.12
  4. Step 4: Simplify right side
    216,758.88x = 29,383,842,666.93
  5. Step 5: Solve for x
    x = 29,383,842,666.93/216,758.88
  6. Step 6: Final answer
    x = 135,560.04

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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.