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Finding the Fourth Proportional to 460.20, 635.40 and 294.84

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Solution

The fourth proportional to 460.20, 635.40 and 294.84 is: 407.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.20 : 635.40 = 294.84 : x
  2. Step 2: Convert to fraction form
    460.20/635.40 = 294.84/x
  3. Step 3: Cross multiply
    460.20x = 635.40 × 294.84
  4. Step 4: Simplify right side
    460.20x = 187,341.34
  5. Step 5: Solve for x
    x = 187,341.34/460.20
  6. Step 6: Final answer
    x = 407.09

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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.