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Finding the Fourth Proportional to 633.83, 874.55 and 368.32

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Solution

The fourth proportional to 633.83, 874.55 and 368.32 is: 508.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.83 : 874.55 = 368.32 : x
  2. Step 2: Convert to fraction form
    633.83/874.55 = 368.32/x
  3. Step 3: Cross multiply
    633.83x = 874.55 × 368.32
  4. Step 4: Simplify right side
    633.83x = 322,114.26
  5. Step 5: Solve for x
    x = 322,114.26/633.83
  6. Step 6: Final answer
    x = 508.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.