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Finding the Fourth Proportional to 461.28, 692.22 and 400.32

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Solution

The fourth proportional to 461.28, 692.22 and 400.32 is: 600.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.28 : 692.22 = 400.32 : x
  2. Step 2: Convert to fraction form
    461.28/692.22 = 400.32/x
  3. Step 3: Cross multiply
    461.28x = 692.22 × 400.32
  4. Step 4: Simplify right side
    461.28x = 277,109.51
  5. Step 5: Solve for x
    x = 277,109.51/461.28
  6. Step 6: Final answer
    x = 600.74

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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.