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Finding the Fourth Proportional to 218,370.83, 327,444.77 and 99,940.63

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Solution

The fourth proportional to 218,370.83, 327,444.77 and 99,940.63 is: 149,859.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,370.83 : 327,444.77 = 99,940.63 : x
  2. Step 2: Convert to fraction form
    218,370.83/327,444.77 = 99,940.63/x
  3. Step 3: Cross multiply
    218,370.83x = 327,444.77 × 99,940.63
  4. Step 4: Simplify right side
    218,370.83x = 32,725,035,025.56
  5. Step 5: Solve for x
    x = 32,725,035,025.56/218,370.83
  6. Step 6: Final answer
    x = 149,859.92

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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.