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Finding the Fourth Proportional to 245.02, 337.87 and 210.17

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Solution

The fourth proportional to 245.02, 337.87 and 210.17 is: 289.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.02 : 337.87 = 210.17 : x
  2. Step 2: Convert to fraction form
    245.02/337.87 = 210.17/x
  3. Step 3: Cross multiply
    245.02x = 337.87 × 210.17
  4. Step 4: Simplify right side
    245.02x = 71,010.14
  5. Step 5: Solve for x
    x = 71,010.14/245.02
  6. Step 6: Final answer
    x = 289.81

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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.