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Finding the Fourth Proportional to 238,758.46, 329,479.80 and 131,328.49

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Solution

The fourth proportional to 238,758.46, 329,479.80 and 131,328.49 is: 181,229.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,758.46 : 329,479.80 = 131,328.49 : x
  2. Step 2: Convert to fraction form
    238,758.46/329,479.80 = 131,328.49/x
  3. Step 3: Cross multiply
    238,758.46x = 329,479.80 × 131,328.49
  4. Step 4: Simplify right side
    238,758.46x = 43,270,084,619.50
  5. Step 5: Solve for x
    x = 43,270,084,619.50/238,758.46
  6. Step 6: Final answer
    x = 181,229.53

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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.