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Finding the Fourth Proportional to 733.78, 1,101.32 and 368.77

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Solution

The fourth proportional to 733.78, 1,101.32 and 368.77 is: 553.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.78 : 1,101.32 = 368.77 : x
  2. Step 2: Convert to fraction form
    733.78/1,101.32 = 368.77/x
  3. Step 3: Cross multiply
    733.78x = 1,101.32 × 368.77
  4. Step 4: Simplify right side
    733.78x = 406,133.78
  5. Step 5: Solve for x
    x = 406,133.78/733.78
  6. Step 6: Final answer
    x = 553.49

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Double scale
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1.5x scale

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.