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Finding the Fourth Proportional to 252.29, 347.98 and 152.67

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Solution

The fourth proportional to 252.29, 347.98 and 152.67 is: 210.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.29 : 347.98 = 152.67 : x
  2. Step 2: Convert to fraction form
    252.29/347.98 = 152.67/x
  3. Step 3: Cross multiply
    252.29x = 347.98 × 152.67
  4. Step 4: Simplify right side
    252.29x = 53,126.11
  5. Step 5: Solve for x
    x = 53,126.11/252.29
  6. Step 6: Final answer
    x = 210.58

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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.