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Finding the Fourth Proportional to 369.02, 553.34 and 247.16

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Solution

The fourth proportional to 369.02, 553.34 and 247.16 is: 370.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.02 : 553.34 = 247.16 : x
  2. Step 2: Convert to fraction form
    369.02/553.34 = 247.16/x
  3. Step 3: Cross multiply
    369.02x = 553.34 × 247.16
  4. Step 4: Simplify right side
    369.02x = 136,763.51
  5. Step 5: Solve for x
    x = 136,763.51/369.02
  6. Step 6: Final answer
    x = 370.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.