Home / 218,725.80-328,088.70-197,298.60

Finding the Fourth Proportional to 218,725.80, 328,088.70 and 197,298.60

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Solution

The fourth proportional to 218,725.80, 328,088.70 and 197,298.60 is: 295,947.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,725.80 : 328,088.70 = 197,298.60 : x
  2. Step 2: Convert to fraction form
    218,725.80/328,088.70 = 197,298.60/x
  3. Step 3: Cross multiply
    218,725.80x = 328,088.70 × 197,298.60
  4. Step 4: Simplify right side
    218,725.80x = 64,731,441,185.82
  5. Step 5: Solve for x
    x = 64,731,441,185.82/218,725.80
  6. Step 6: Final answer
    x = 295,947.90

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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.