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Finding the Fourth Proportional to 569.25, 854.15 and 545.18

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Solution

The fourth proportional to 569.25, 854.15 and 545.18 is: 818.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.25 : 854.15 = 545.18 : x
  2. Step 2: Convert to fraction form
    569.25/854.15 = 545.18/x
  3. Step 3: Cross multiply
    569.25x = 854.15 × 545.18
  4. Step 4: Simplify right side
    569.25x = 465,658.50
  5. Step 5: Solve for x
    x = 465,658.50/569.25
  6. Step 6: Final answer
    x = 818.02

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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.