Home / 218,724.80-328,087.20-197,297.60

Finding the Fourth Proportional to 218,724.80, 328,087.20 and 197,297.60

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Solution

The fourth proportional to 218,724.80, 328,087.20 and 197,297.60 is: 295,946.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,724.80 : 328,087.20 = 197,297.60 : x
  2. Step 2: Convert to fraction form
    218,724.80/328,087.20 = 197,297.60/x
  3. Step 3: Cross multiply
    218,724.80x = 328,087.20 × 197,297.60
  4. Step 4: Simplify right side
    218,724.80x = 64,730,817,150.72
  5. Step 5: Solve for x
    x = 64,730,817,150.72/218,724.80
  6. Step 6: Final answer
    x = 295,946.40

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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.