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Finding the Fourth Proportional to 421,635.56, 631,439.92 and 241,173.90

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Solution

The fourth proportional to 421,635.56, 631,439.92 and 241,173.90 is: 361,181.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,635.56 : 631,439.92 = 241,173.90 : x
  2. Step 2: Convert to fraction form
    421,635.56/631,439.92 = 241,173.90/x
  3. Step 3: Cross multiply
    421,635.56x = 631,439.92 × 241,173.90
  4. Step 4: Simplify right side
    421,635.56x = 152,286,828,122.09
  5. Step 5: Solve for x
    x = 152,286,828,122.09/421,635.56
  6. Step 6: Final answer
    x = 361,181.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.