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Finding the Fourth Proportional to 238,580.64, 329,238.62 and 129,682.62

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Solution

The fourth proportional to 238,580.64, 329,238.62 and 129,682.62 is: 178,960.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,580.64 : 329,238.62 = 129,682.62 : x
  2. Step 2: Convert to fraction form
    238,580.64/329,238.62 = 129,682.62/x
  3. Step 3: Cross multiply
    238,580.64x = 329,238.62 × 129,682.62
  4. Step 4: Simplify right side
    238,580.64x = 42,696,526,846.78
  5. Step 5: Solve for x
    x = 42,696,526,846.78/238,580.64
  6. Step 6: Final answer
    x = 178,960.57

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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.