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Finding the Fourth Proportional to 295.05, 439.34 and 291.79

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Solution

The fourth proportional to 295.05, 439.34 and 291.79 is: 434.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.05 : 439.34 = 291.79 : x
  2. Step 2: Convert to fraction form
    295.05/439.34 = 291.79/x
  3. Step 3: Cross multiply
    295.05x = 439.34 × 291.79
  4. Step 4: Simplify right side
    295.05x = 128,195.02
  5. Step 5: Solve for x
    x = 128,195.02/295.05
  6. Step 6: Final answer
    x = 434.49

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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.