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Finding the Fourth Proportional to 397,416.64, 548,157.36 and 269,870.80

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Solution

The fourth proportional to 397,416.64, 548,157.36 and 269,870.80 is: 372,233.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,416.64 : 548,157.36 = 269,870.80 : x
  2. Step 2: Convert to fraction form
    397,416.64/548,157.36 = 269,870.80/x
  3. Step 3: Cross multiply
    397,416.64x = 548,157.36 × 269,870.80
  4. Step 4: Simplify right side
    397,416.64x = 147,931,665,269.09
  5. Step 5: Solve for x
    x = 147,931,665,269.09/397,416.64
  6. Step 6: Final answer
    x = 372,233.19

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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.