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Finding the Fourth Proportional to 238,459.06, 329,071.17 and 131,026.78

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Solution

The fourth proportional to 238,459.06, 329,071.17 and 131,026.78 is: 180,815.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,459.06 : 329,071.17 = 131,026.78 : x
  2. Step 2: Convert to fraction form
    238,459.06/329,071.17 = 131,026.78/x
  3. Step 3: Cross multiply
    238,459.06x = 329,071.17 × 131,026.78
  4. Step 4: Simplify right side
    238,459.06x = 43,117,135,795.93
  5. Step 5: Solve for x
    x = 43,117,135,795.93/238,459.06
  6. Step 6: Final answer
    x = 180,815.67

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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.