Home / 238,706.75-329,408.73-131,276.78

Finding the Fourth Proportional to 238,706.75, 329,408.73 and 131,276.78

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Solution

The fourth proportional to 238,706.75, 329,408.73 and 131,276.78 is: 181,158.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,706.75 : 329,408.73 = 131,276.78 : x
  2. Step 2: Convert to fraction form
    238,706.75/329,408.73 = 131,276.78/x
  3. Step 3: Cross multiply
    238,706.75x = 329,408.73 × 131,276.78
  4. Step 4: Simplify right side
    238,706.75x = 43,243,717,378.29
  5. Step 5: Solve for x
    x = 43,243,717,378.29/238,706.75
  6. Step 6: Final answer
    x = 181,158.33

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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.