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Finding the Fourth Proportional to 171,218.80, 256,828.20 and 166,844.80

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Solution

The fourth proportional to 171,218.80, 256,828.20 and 166,844.80 is: 250,267.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,218.80 : 256,828.20 = 166,844.80 : x
  2. Step 2: Convert to fraction form
    171,218.80/256,828.20 = 166,844.80/x
  3. Step 3: Cross multiply
    171,218.80x = 256,828.20 × 166,844.80
  4. Step 4: Simplify right side
    171,218.80x = 42,850,449,663.36
  5. Step 5: Solve for x
    x = 42,850,449,663.36/171,218.80
  6. Step 6: Final answer
    x = 250,267.20

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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.