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Finding the Fourth Proportional to 295.18, 407.10 and 291.13

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Solution

The fourth proportional to 295.18, 407.10 and 291.13 is: 401.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.18 : 407.10 = 291.13 : x
  2. Step 2: Convert to fraction form
    295.18/407.10 = 291.13/x
  3. Step 3: Cross multiply
    295.18x = 407.10 × 291.13
  4. Step 4: Simplify right side
    295.18x = 118,519.02
  5. Step 5: Solve for x
    x = 118,519.02/295.18
  6. Step 6: Final answer
    x = 401.51

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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.