Home / 222,044.24-306,409.80-137,168.72

Finding the Fourth Proportional to 222,044.24, 306,409.80 and 137,168.72

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Solution

The fourth proportional to 222,044.24, 306,409.80 and 137,168.72 is: 189,285.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,044.24 : 306,409.80 = 137,168.72 : x
  2. Step 2: Convert to fraction form
    222,044.24/306,409.80 = 137,168.72/x
  3. Step 3: Cross multiply
    222,044.24x = 306,409.80 × 137,168.72
  4. Step 4: Simplify right side
    222,044.24x = 42,029,840,061.46
  5. Step 5: Solve for x
    x = 42,029,840,061.46/222,044.24
  6. Step 6: Final answer
    x = 189,285.88

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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.