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Finding the Fourth Proportional to 353,753.96, 488,022.74 and 238,995.72

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Solution

The fourth proportional to 353,753.96, 488,022.74 and 238,995.72 is: 329,707.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,753.96 : 488,022.74 = 238,995.72 : x
  2. Step 2: Convert to fraction form
    353,753.96/488,022.74 = 238,995.72/x
  3. Step 3: Cross multiply
    353,753.96x = 488,022.74 × 238,995.72
  4. Step 4: Simplify right side
    353,753.96x = 116,635,346,122.67
  5. Step 5: Solve for x
    x = 116,635,346,122.67/353,753.96
  6. Step 6: Final answer
    x = 329,707.53

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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.