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Finding the Fourth Proportional to 225.36, 336.78 and 152.46

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Solution

The fourth proportional to 225.36, 336.78 and 152.46 is: 227.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.36 : 336.78 = 152.46 : x
  2. Step 2: Convert to fraction form
    225.36/336.78 = 152.46/x
  3. Step 3: Cross multiply
    225.36x = 336.78 × 152.46
  4. Step 4: Simplify right side
    225.36x = 51,345.48
  5. Step 5: Solve for x
    x = 51,345.48/225.36
  6. Step 6: Final answer
    x = 227.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.