Home / 218,078.40-327,117.60-197,342.40

Finding the Fourth Proportional to 218,078.40, 327,117.60 and 197,342.40

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Solution

The fourth proportional to 218,078.40, 327,117.60 and 197,342.40 is: 296,013.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,078.40 : 327,117.60 = 197,342.40 : x
  2. Step 2: Convert to fraction form
    218,078.40/327,117.60 = 197,342.40/x
  3. Step 3: Cross multiply
    218,078.40x = 327,117.60 × 197,342.40
  4. Step 4: Simplify right side
    218,078.40x = 64,554,172,266.24
  5. Step 5: Solve for x
    x = 64,554,172,266.24/218,078.40
  6. Step 6: Final answer
    x = 296,013.60

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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.