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Finding the Fourth Proportional to 567.15, 850.86 and 278.52

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Solution

The fourth proportional to 567.15, 850.86 and 278.52 is: 417.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.15 : 850.86 = 278.52 : x
  2. Step 2: Convert to fraction form
    567.15/850.86 = 278.52/x
  3. Step 3: Cross multiply
    567.15x = 850.86 × 278.52
  4. Step 4: Simplify right side
    567.15x = 236,981.53
  5. Step 5: Solve for x
    x = 236,981.53/567.15
  6. Step 6: Final answer
    x = 417.85

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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.