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Finding the Fourth Proportional to 238,762.82, 329,487.32 and 131,330.50

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Solution

The fourth proportional to 238,762.82, 329,487.32 and 131,330.50 is: 181,233.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,762.82 : 329,487.32 = 131,330.50 : x
  2. Step 2: Convert to fraction form
    238,762.82/329,487.32 = 131,330.50/x
  3. Step 3: Cross multiply
    238,762.82x = 329,487.32 × 131,330.50
  4. Step 4: Simplify right side
    238,762.82x = 43,271,734,479.26
  5. Step 5: Solve for x
    x = 43,271,734,479.26/238,762.82
  6. Step 6: Final answer
    x = 181,233.14

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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.