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Finding the Fourth Proportional to 225.16, 310.62 and 192.08

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Solution

The fourth proportional to 225.16, 310.62 and 192.08 is: 264.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.16 : 310.62 = 192.08 : x
  2. Step 2: Convert to fraction form
    225.16/310.62 = 192.08/x
  3. Step 3: Cross multiply
    225.16x = 310.62 × 192.08
  4. Step 4: Simplify right side
    225.16x = 59,663.89
  5. Step 5: Solve for x
    x = 59,663.89/225.16
  6. Step 6: Final answer
    x = 264.98

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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.