Home / 238,639.74-329,319.89-131,208.84

Finding the Fourth Proportional to 238,639.74, 329,319.89 and 131,208.84

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Solution

The fourth proportional to 238,639.74, 329,319.89 and 131,208.84 is: 181,066.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,639.74 : 329,319.89 = 131,208.84 : x
  2. Step 2: Convert to fraction form
    238,639.74/329,319.89 = 131,208.84/x
  3. Step 3: Cross multiply
    238,639.74x = 329,319.89 × 131,208.84
  4. Step 4: Simplify right side
    238,639.74x = 43,209,680,099.78
  5. Step 5: Solve for x
    x = 43,209,680,099.78/238,639.74
  6. Step 6: Final answer
    x = 181,066.57

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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.