Home / 238,653.50-329,333.40-131,222.78

Finding the Fourth Proportional to 238,653.50, 329,333.40 and 131,222.78

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Solution

The fourth proportional to 238,653.50, 329,333.40 and 131,222.78 is: 181,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,653.50 : 329,333.40 = 131,222.78 : x
  2. Step 2: Convert to fraction form
    238,653.50/329,333.40 = 131,222.78/x
  3. Step 3: Cross multiply
    238,653.50x = 329,333.40 × 131,222.78
  4. Step 4: Simplify right side
    238,653.50x = 43,216,044,294.85
  5. Step 5: Solve for x
    x = 43,216,044,294.85/238,653.50
  6. Step 6: Final answer
    x = 181,082.80

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1.5x scale

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.