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Finding the Fourth Proportional to 221,452.40, 331,487.40 and 174,450.80

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Solution

The fourth proportional to 221,452.40, 331,487.40 and 174,450.80 is: 261,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,452.40 : 331,487.40 = 174,450.80 : x
  2. Step 2: Convert to fraction form
    221,452.40/331,487.40 = 174,450.80/x
  3. Step 3: Cross multiply
    221,452.40x = 331,487.40 × 174,450.80
  4. Step 4: Simplify right side
    221,452.40x = 57,828,242,119.92
  5. Step 5: Solve for x
    x = 57,828,242,119.92/221,452.40
  6. Step 6: Final answer
    x = 261,131.70

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1.5x scale

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.