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Finding the Fourth Proportional to 701.54, 1,051.78 and 239.19

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Solution

The fourth proportional to 701.54, 1,051.78 and 239.19 is: 358.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.54 : 1,051.78 = 239.19 : x
  2. Step 2: Convert to fraction form
    701.54/1,051.78 = 239.19/x
  3. Step 3: Cross multiply
    701.54x = 1,051.78 × 239.19
  4. Step 4: Simplify right side
    701.54x = 251,575.26
  5. Step 5: Solve for x
    x = 251,575.26/701.54
  6. Step 6: Final answer
    x = 358.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.