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Finding the Fourth Proportional to 450.77, 622.24 and 340.27

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Solution

The fourth proportional to 450.77, 622.24 and 340.27 is: 469.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.77 : 622.24 = 340.27 : x
  2. Step 2: Convert to fraction form
    450.77/622.24 = 340.27/x
  3. Step 3: Cross multiply
    450.77x = 622.24 × 340.27
  4. Step 4: Simplify right side
    450.77x = 211,727.20
  5. Step 5: Solve for x
    x = 211,727.20/450.77
  6. Step 6: Final answer
    x = 469.71

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Find fourth proportional to 225.38, 311.12 and 170.13
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Double scale
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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.