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Finding the Fourth Proportional to 545.55, 818.91 and 302.01

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Solution

The fourth proportional to 545.55, 818.91 and 302.01 is: 453.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.55 : 818.91 = 302.01 : x
  2. Step 2: Convert to fraction form
    545.55/818.91 = 302.01/x
  3. Step 3: Cross multiply
    545.55x = 818.91 × 302.01
  4. Step 4: Simplify right side
    545.55x = 247,319.01
  5. Step 5: Solve for x
    x = 247,319.01/545.55
  6. Step 6: Final answer
    x = 453.34

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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.