Home / 218,824.29-328,271.49-92,465.78

Finding the Fourth Proportional to 218,824.29, 328,271.49 and 92,465.78

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Solution

The fourth proportional to 218,824.29, 328,271.49 and 92,465.78 is: 138,713.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,824.29 : 328,271.49 = 92,465.78 : x
  2. Step 2: Convert to fraction form
    218,824.29/328,271.49 = 92,465.78/x
  3. Step 3: Cross multiply
    218,824.29x = 328,271.49 × 92,465.78
  4. Step 4: Simplify right side
    218,824.29x = 30,353,877,733.25
  5. Step 5: Solve for x
    x = 30,353,877,733.25/218,824.29
  6. Step 6: Final answer
    x = 138,713.48

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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.