Home / 218,749.47-328,125.59-60,979.29

Finding the Fourth Proportional to 218,749.47, 328,125.59 and 60,979.29

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Solution

The fourth proportional to 218,749.47, 328,125.59 and 60,979.29 is: 91,469.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,749.47 : 328,125.59 = 60,979.29 : x
  2. Step 2: Convert to fraction form
    218,749.47/328,125.59 = 60,979.29/x
  3. Step 3: Cross multiply
    218,749.47x = 328,125.59 × 60,979.29
  4. Step 4: Simplify right side
    218,749.47x = 20,008,865,204.13
  5. Step 5: Solve for x
    x = 20,008,865,204.13/218,749.47
  6. Step 6: Final answer
    x = 91,469.32

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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.