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Finding the Fourth Proportional to 238,615.88, 329,290.13 and 131,187.74

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Solution

The fourth proportional to 238,615.88, 329,290.13 and 131,187.74 is: 181,039.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,615.88 : 329,290.13 = 131,187.74 : x
  2. Step 2: Convert to fraction form
    238,615.88/329,290.13 = 131,187.74/x
  3. Step 3: Cross multiply
    238,615.88x = 329,290.13 × 131,187.74
  4. Step 4: Simplify right side
    238,615.88x = 43,198,827,303.07
  5. Step 5: Solve for x
    x = 43,198,827,303.07/238,615.88
  6. Step 6: Final answer
    x = 181,039.20

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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.