Home / 222,143.28-306,238.88-158,370.36

Finding the Fourth Proportional to 222,143.28, 306,238.88 and 158,370.36

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Solution

The fourth proportional to 222,143.28, 306,238.88 and 158,370.36 is: 218,323.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,143.28 : 306,238.88 = 158,370.36 : x
  2. Step 2: Convert to fraction form
    222,143.28/306,238.88 = 158,370.36/x
  3. Step 3: Cross multiply
    222,143.28x = 306,238.88 × 158,370.36
  4. Step 4: Simplify right side
    222,143.28x = 48,499,161,671.60
  5. Step 5: Solve for x
    x = 48,499,161,671.60/222,143.28
  6. Step 6: Final answer
    x = 218,323.78

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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.