Home / 221,331.15-331,964.33-108,980.91

Finding the Fourth Proportional to 221,331.15, 331,964.33 and 108,980.91

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Solution

The fourth proportional to 221,331.15, 331,964.33 and 108,980.91 is: 163,455.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,331.15 : 331,964.33 = 108,980.91 : x
  2. Step 2: Convert to fraction form
    221,331.15/331,964.33 = 108,980.91/x
  3. Step 3: Cross multiply
    221,331.15x = 331,964.33 × 108,980.91
  4. Step 4: Simplify right side
    221,331.15x = 36,177,774,226.04
  5. Step 5: Solve for x
    x = 36,177,774,226.04/221,331.15
  6. Step 6: Final answer
    x = 163,455.41

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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.