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Finding the Fourth Proportional to 292.10, 439.74 and 266.59

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Solution

The fourth proportional to 292.10, 439.74 and 266.59 is: 401.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.10 : 439.74 = 266.59 : x
  2. Step 2: Convert to fraction form
    292.10/439.74 = 266.59/x
  3. Step 3: Cross multiply
    292.10x = 439.74 × 266.59
  4. Step 4: Simplify right side
    292.10x = 117,228.19
  5. Step 5: Solve for x
    x = 117,228.19/292.10
  6. Step 6: Final answer
    x = 401.33

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.