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Finding the Fourth Proportional to 701.57, 1,051.84 and 354.75

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Solution

The fourth proportional to 701.57, 1,051.84 and 354.75 is: 531.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.57 : 1,051.84 = 354.75 : x
  2. Step 2: Convert to fraction form
    701.57/1,051.84 = 354.75/x
  3. Step 3: Cross multiply
    701.57x = 1,051.84 × 354.75
  4. Step 4: Simplify right side
    701.57x = 373,140.24
  5. Step 5: Solve for x
    x = 373,140.24/701.57
  6. Step 6: Final answer
    x = 531.86

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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.