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Finding the Fourth Proportional to 221,460.40, 331,499.40 and 174,458.80

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Solution

The fourth proportional to 221,460.40, 331,499.40 and 174,458.80 is: 261,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,460.40 : 331,499.40 = 174,458.80 : x
  2. Step 2: Convert to fraction form
    221,460.40/331,499.40 = 174,458.80/x
  3. Step 3: Cross multiply
    221,460.40x = 331,499.40 × 174,458.80
  4. Step 4: Simplify right side
    221,460.40x = 57,832,987,524.72
  5. Step 5: Solve for x
    x = 57,832,987,524.72/221,460.40
  6. Step 6: Final answer
    x = 261,143.70

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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.