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Finding the Fourth Proportional to 222,143.66, 306,239.40 and 158,370.74

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Solution

The fourth proportional to 222,143.66, 306,239.40 and 158,370.74 is: 218,324.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,143.66 : 306,239.40 = 158,370.74 : x
  2. Step 2: Convert to fraction form
    222,143.66/306,239.40 = 158,370.74/x
  3. Step 3: Cross multiply
    222,143.66x = 306,239.40 × 158,370.74
  4. Step 4: Simplify right side
    222,143.66x = 48,499,360,395.16
  5. Step 5: Solve for x
    x = 48,499,360,395.16/222,143.66
  6. Step 6: Final answer
    x = 218,324.31

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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.