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Finding the Fourth Proportional to 222,143.77, 306,433.78 and 136,144.41

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Solution

The fourth proportional to 222,143.77, 306,433.78 and 136,144.41 is: 187,802.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,143.77 : 306,433.78 = 136,144.41 : x
  2. Step 2: Convert to fraction form
    222,143.77/306,433.78 = 136,144.41/x
  3. Step 3: Cross multiply
    222,143.77x = 306,433.78 × 136,144.41
  4. Step 4: Simplify right side
    222,143.77x = 41,719,246,182.17
  5. Step 5: Solve for x
    x = 41,719,246,182.17/222,143.77
  6. Step 6: Final answer
    x = 187,802.91

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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.