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Finding the Fourth Proportional to 279,232.88, 385,475.20 and 171,894.92

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Solution

The fourth proportional to 279,232.88, 385,475.20 and 171,894.92 is: 237,297.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,232.88 : 385,475.20 = 171,894.92 : x
  2. Step 2: Convert to fraction form
    279,232.88/385,475.20 = 171,894.92/x
  3. Step 3: Cross multiply
    279,232.88x = 385,475.20 × 171,894.92
  4. Step 4: Simplify right side
    279,232.88x = 66,261,228,665.98
  5. Step 5: Solve for x
    x = 66,261,228,665.98/279,232.88
  6. Step 6: Final answer
    x = 237,297.37

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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.