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Finding the Fourth Proportional to 701.88, 1,053.47 and 355.46

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Solution

The fourth proportional to 701.88, 1,053.47 and 355.46 is: 533.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.88 : 1,053.47 = 355.46 : x
  2. Step 2: Convert to fraction form
    701.88/1,053.47 = 355.46/x
  3. Step 3: Cross multiply
    701.88x = 1,053.47 × 355.46
  4. Step 4: Simplify right side
    701.88x = 374,466.45
  5. Step 5: Solve for x
    x = 374,466.45/701.88
  6. Step 6: Final answer
    x = 533.52

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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.