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Finding the Fourth Proportional to 545.63, 818.58 and 160.88

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Solution

The fourth proportional to 545.63, 818.58 and 160.88 is: 241.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.63 : 818.58 = 160.88 : x
  2. Step 2: Convert to fraction form
    545.63/818.58 = 160.88/x
  3. Step 3: Cross multiply
    545.63x = 818.58 × 160.88
  4. Step 4: Simplify right side
    545.63x = 131,689.06
  5. Step 5: Solve for x
    x = 131,689.06/545.63
  6. Step 6: Final answer
    x = 241.35

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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.