Home / 221,777.64-306,052.97-121,175.64

Finding the Fourth Proportional to 221,777.64, 306,052.97 and 121,175.64

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Solution

The fourth proportional to 221,777.64, 306,052.97 and 121,175.64 is: 167,222.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,777.64 : 306,052.97 = 121,175.64 : x
  2. Step 2: Convert to fraction form
    221,777.64/306,052.97 = 121,175.64/x
  3. Step 3: Cross multiply
    221,777.64x = 306,052.97 × 121,175.64
  4. Step 4: Simplify right side
    221,777.64x = 37,086,163,907.77
  5. Step 5: Solve for x
    x = 37,086,163,907.77/221,777.64
  6. Step 6: Final answer
    x = 167,222.29

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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.