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Finding the Fourth Proportional to 490.05, 731.63 and 373.87

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Solution

The fourth proportional to 490.05, 731.63 and 373.87 is: 558.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    490.05 : 731.63 = 373.87 : x
  2. Step 2: Convert to fraction form
    490.05/731.63 = 373.87/x
  3. Step 3: Cross multiply
    490.05x = 731.63 × 373.87
  4. Step 4: Simplify right side
    490.05x = 273,534.51
  5. Step 5: Solve for x
    x = 273,534.51/490.05
  6. Step 6: Final answer
    x = 558.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.