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Finding the Fourth Proportional to 262.95, 362.85 and 152.43

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Solution

The fourth proportional to 262.95, 362.85 and 152.43 is: 210.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.95 : 362.85 = 152.43 : x
  2. Step 2: Convert to fraction form
    262.95/362.85 = 152.43/x
  3. Step 3: Cross multiply
    262.95x = 362.85 × 152.43
  4. Step 4: Simplify right side
    262.95x = 55,309.23
  5. Step 5: Solve for x
    x = 55,309.23/262.95
  6. Step 6: Final answer
    x = 210.34

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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.