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Finding the Fourth Proportional to 238,459.68, 329,074.25 and 131,036.63

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Solution

The fourth proportional to 238,459.68, 329,074.25 and 131,036.63 is: 180,830.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,459.68 : 329,074.25 = 131,036.63 : x
  2. Step 2: Convert to fraction form
    238,459.68/329,074.25 = 131,036.63/x
  3. Step 3: Cross multiply
    238,459.68x = 329,074.25 × 131,036.63
  4. Step 4: Simplify right side
    238,459.68x = 43,120,778,439.22
  5. Step 5: Solve for x
    x = 43,120,778,439.22/238,459.68
  6. Step 6: Final answer
    x = 180,830.48

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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.