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Finding the Fourth Proportional to 901.34, 1,351.10 and 352.77

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Solution

The fourth proportional to 901.34, 1,351.10 and 352.77 is: 528.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.34 : 1,351.10 = 352.77 : x
  2. Step 2: Convert to fraction form
    901.34/1,351.10 = 352.77/x
  3. Step 3: Cross multiply
    901.34x = 1,351.10 × 352.77
  4. Step 4: Simplify right side
    901.34x = 476,628.98
  5. Step 5: Solve for x
    x = 476,628.98/901.34
  6. Step 6: Final answer
    x = 528.80

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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.