Home / 218,292.07-327,438.19-98,208.78

Finding the Fourth Proportional to 218,292.07, 327,438.19 and 98,208.78

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Solution

The fourth proportional to 218,292.07, 327,438.19 and 98,208.78 is: 147,313.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,292.07 : 327,438.19 = 98,208.78 : x
  2. Step 2: Convert to fraction form
    218,292.07/327,438.19 = 98,208.78/x
  3. Step 3: Cross multiply
    218,292.07x = 327,438.19 × 98,208.78
  4. Step 4: Simplify right side
    218,292.07x = 32,157,305,349.59
  5. Step 5: Solve for x
    x = 32,157,305,349.59/218,292.07
  6. Step 6: Final answer
    x = 147,313.21

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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.