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Finding the Fourth Proportional to 218,517.60, 327,888.72 and 189,124.32

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Solution

The fourth proportional to 218,517.60, 327,888.72 and 189,124.32 is: 283,783.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,517.60 : 327,888.72 = 189,124.32 : x
  2. Step 2: Convert to fraction form
    218,517.60/327,888.72 = 189,124.32/x
  3. Step 3: Cross multiply
    218,517.60x = 327,888.72 × 189,124.32
  4. Step 4: Simplify right side
    218,517.60x = 62,011,731,205.67
  5. Step 5: Solve for x
    x = 62,011,731,205.67/218,517.60
  6. Step 6: Final answer
    x = 283,783.69

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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.