Home / 222,143.03-306,238.53-158,370.11

Finding the Fourth Proportional to 222,143.03, 306,238.53 and 158,370.11

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Solution

The fourth proportional to 222,143.03, 306,238.53 and 158,370.11 is: 218,323.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,143.03 : 306,238.53 = 158,370.11 : x
  2. Step 2: Convert to fraction form
    222,143.03/306,238.53 = 158,370.11/x
  3. Step 3: Cross multiply
    222,143.03x = 306,238.53 × 158,370.11
  4. Step 4: Simplify right side
    222,143.03x = 48,499,028,151.15
  5. Step 5: Solve for x
    x = 48,499,028,151.15/222,143.03
  6. Step 6: Final answer
    x = 218,323.43

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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.