Home / 230,663.05-318,307.78-135,233.30

Finding the Fourth Proportional to 230,663.05, 318,307.78 and 135,233.30

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Solution

The fourth proportional to 230,663.05, 318,307.78 and 135,233.30 is: 186,617.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,663.05 : 318,307.78 = 135,233.30 : x
  2. Step 2: Convert to fraction form
    230,663.05/318,307.78 = 135,233.30/x
  3. Step 3: Cross multiply
    230,663.05x = 318,307.78 × 135,233.30
  4. Step 4: Simplify right side
    230,663.05x = 43,045,811,505.07
  5. Step 5: Solve for x
    x = 43,045,811,505.07/230,663.05
  6. Step 6: Final answer
    x = 186,617.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.