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Finding the Fourth Proportional to 251.95, 347.65 and 152.34

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Solution

The fourth proportional to 251.95, 347.65 and 152.34 is: 210.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.95 : 347.65 = 152.34 : x
  2. Step 2: Convert to fraction form
    251.95/347.65 = 152.34/x
  3. Step 3: Cross multiply
    251.95x = 347.65 × 152.34
  4. Step 4: Simplify right side
    251.95x = 52,961.00
  5. Step 5: Solve for x
    x = 52,961.00/251.95
  6. Step 6: Final answer
    x = 210.20

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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.