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Finding the Fourth Proportional to 216,405.88, 324,025.62 and 141,340.12

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Solution

The fourth proportional to 216,405.88, 324,025.62 and 141,340.12 is: 211,629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,405.88 : 324,025.62 = 141,340.12 : x
  2. Step 2: Convert to fraction form
    216,405.88/324,025.62 = 141,340.12/x
  3. Step 3: Cross multiply
    216,405.88x = 324,025.62 × 141,340.12
  4. Step 4: Simplify right side
    216,405.88x = 45,797,820,013.87
  5. Step 5: Solve for x
    x = 45,797,820,013.87/216,405.88
  6. Step 6: Final answer
    x = 211,629.28

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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.