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Finding the Fourth Proportional to 238,651.82, 329,330.99 and 131,220.91

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Solution

The fourth proportional to 238,651.82, 329,330.99 and 131,220.91 is: 181,080.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,651.82 : 329,330.99 = 131,220.91 : x
  2. Step 2: Convert to fraction form
    238,651.82/329,330.99 = 131,220.91/x
  3. Step 3: Cross multiply
    238,651.82x = 329,330.99 × 131,220.91
  4. Step 4: Simplify right side
    238,651.82x = 43,215,112,569.66
  5. Step 5: Solve for x
    x = 43,215,112,569.66/238,651.82
  6. Step 6: Final answer
    x = 181,080.17

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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.