Home / 218,812.42-328,253.66-92,453.89

Finding the Fourth Proportional to 218,812.42, 328,253.66 and 92,453.89

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Solution

The fourth proportional to 218,812.42, 328,253.66 and 92,453.89 is: 138,695.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,812.42 : 328,253.66 = 92,453.89 : x
  2. Step 2: Convert to fraction form
    218,812.42/328,253.66 = 92,453.89/x
  3. Step 3: Cross multiply
    218,812.42x = 328,253.66 × 92,453.89
  4. Step 4: Simplify right side
    218,812.42x = 30,348,325,670.20
  5. Step 5: Solve for x
    x = 30,348,325,670.20/218,812.42
  6. Step 6: Final answer
    x = 138,695.63

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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.