Home / 218,818.49-328,271.96-92,459.09

Finding the Fourth Proportional to 218,818.49, 328,271.96 and 92,459.09

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Solution

The fourth proportional to 218,818.49, 328,271.96 and 92,459.09 is: 138,707.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,818.49 : 328,271.96 = 92,459.09 : x
  2. Step 2: Convert to fraction form
    218,818.49/328,271.96 = 92,459.09/x
  3. Step 3: Cross multiply
    218,818.49x = 328,271.96 × 92,459.09
  4. Step 4: Simplify right side
    218,818.49x = 30,351,727,745.94
  5. Step 5: Solve for x
    x = 30,351,727,745.94/218,818.49
  6. Step 6: Final answer
    x = 138,707.33

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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.