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Finding the Fourth Proportional to 216,404.88, 324,024.12 and 141,339.12

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Solution

The fourth proportional to 216,404.88, 324,024.12 and 141,339.12 is: 211,627.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,404.88 : 324,024.12 = 141,339.12 : x
  2. Step 2: Convert to fraction form
    216,404.88/324,024.12 = 141,339.12/x
  3. Step 3: Cross multiply
    216,404.88x = 324,024.12 × 141,339.12
  4. Step 4: Simplify right side
    216,404.88x = 45,797,283,979.57
  5. Step 5: Solve for x
    x = 45,797,283,979.57/216,404.88
  6. Step 6: Final answer
    x = 211,627.78

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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.