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Finding the Fourth Proportional to 238,707.72, 329,409.11 and 131,277.42

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Solution

The fourth proportional to 238,707.72, 329,409.11 and 131,277.42 is: 181,158.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,707.72 : 329,409.11 = 131,277.42 : x
  2. Step 2: Convert to fraction form
    238,707.72/329,409.11 = 131,277.42/x
  3. Step 3: Cross multiply
    238,707.72x = 329,409.11 × 131,277.42
  4. Step 4: Simplify right side
    238,707.72x = 43,243,977,428.91
  5. Step 5: Solve for x
    x = 43,243,977,428.91/238,707.72
  6. Step 6: Final answer
    x = 181,158.69

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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.