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Finding the Fourth Proportional to 216,420.60, 324,586.92 and 181,253.64

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Solution

The fourth proportional to 216,420.60, 324,586.92 and 181,253.64 is: 271,843.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,420.60 : 324,586.92 = 181,253.64 : x
  2. Step 2: Convert to fraction form
    216,420.60/324,586.92 = 181,253.64/x
  3. Step 3: Cross multiply
    216,420.60x = 324,586.92 × 181,253.64
  4. Step 4: Simplify right side
    216,420.60x = 58,832,560,746.39
  5. Step 5: Solve for x
    x = 58,832,560,746.39/216,420.60
  6. Step 6: Final answer
    x = 271,843.63

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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.