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Finding the Fourth Proportional to 294.71, 406.76 and 184.21

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Solution

The fourth proportional to 294.71, 406.76 and 184.21 is: 254.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.71 : 406.76 = 184.21 : x
  2. Step 2: Convert to fraction form
    294.71/406.76 = 184.21/x
  3. Step 3: Cross multiply
    294.71x = 406.76 × 184.21
  4. Step 4: Simplify right side
    294.71x = 74,927.32
  5. Step 5: Solve for x
    x = 74,927.32/294.71
  6. Step 6: Final answer
    x = 254.25

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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.