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Finding the Fourth Proportional to 293.82, 435.21 and 290.58

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Solution

The fourth proportional to 293.82, 435.21 and 290.58 is: 430.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.82 : 435.21 = 290.58 : x
  2. Step 2: Convert to fraction form
    293.82/435.21 = 290.58/x
  3. Step 3: Cross multiply
    293.82x = 435.21 × 290.58
  4. Step 4: Simplify right side
    293.82x = 126,463.32
  5. Step 5: Solve for x
    x = 126,463.32/293.82
  6. Step 6: Final answer
    x = 430.41

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.