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Finding the Fourth Proportional to 294.94, 407 and 170.58

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Solution

The fourth proportional to 294.94, 407 and 170.58 is: 235.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.94 : 407 = 170.58 : x
  2. Step 2: Convert to fraction form
    294.94/407 = 170.58/x
  3. Step 3: Cross multiply
    294.94x = 407 × 170.58
  4. Step 4: Simplify right side
    294.94x = 69,426.06
  5. Step 5: Solve for x
    x = 69,426.06/294.94
  6. Step 6: Final answer
    x = 235.39

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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.