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Finding the Fourth Proportional to 601.47, 829.92 and 339.42

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Solution

The fourth proportional to 601.47, 829.92 and 339.42 is: 468.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.47 : 829.92 = 339.42 : x
  2. Step 2: Convert to fraction form
    601.47/829.92 = 339.42/x
  3. Step 3: Cross multiply
    601.47x = 829.92 × 339.42
  4. Step 4: Simplify right side
    601.47x = 281,691.45
  5. Step 5: Solve for x
    x = 281,691.45/601.47
  6. Step 6: Final answer
    x = 468.34

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1.5x scale

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.