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Finding the Fourth Proportional to 538.14, 740.85 and 464.04

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Solution

The fourth proportional to 538.14, 740.85 and 464.04 is: 638.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    538.14 : 740.85 = 464.04 : x
  2. Step 2: Convert to fraction form
    538.14/740.85 = 464.04/x
  3. Step 3: Cross multiply
    538.14x = 740.85 × 464.04
  4. Step 4: Simplify right side
    538.14x = 343,784.03
  5. Step 5: Solve for x
    x = 343,784.03/538.14
  6. Step 6: Final answer
    x = 638.84

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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.