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Finding the Fourth Proportional to 633.88, 875.15 and 410.20

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Solution

The fourth proportional to 633.88, 875.15 and 410.20 is: 566.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.88 : 875.15 = 410.20 : x
  2. Step 2: Convert to fraction form
    633.88/875.15 = 410.20/x
  3. Step 3: Cross multiply
    633.88x = 875.15 × 410.20
  4. Step 4: Simplify right side
    633.88x = 358,986.53
  5. Step 5: Solve for x
    x = 358,986.53/633.88
  6. Step 6: Final answer
    x = 566.33

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1.5x scale

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.