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Finding the Fourth Proportional to 221,575.80, 306,174.44 and 157,802.88

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Solution

The fourth proportional to 221,575.80, 306,174.44 and 157,802.88 is: 218,052.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,575.80 : 306,174.44 = 157,802.88 : x
  2. Step 2: Convert to fraction form
    221,575.80/306,174.44 = 157,802.88/x
  3. Step 3: Cross multiply
    221,575.80x = 306,174.44 × 157,802.88
  4. Step 4: Simplify right side
    221,575.80x = 48,315,208,414.39
  5. Step 5: Solve for x
    x = 48,315,208,414.39/221,575.80
  6. Step 6: Final answer
    x = 218,052.73

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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.