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Finding the Fourth Proportional to 562.55, 776.67 and 363.45

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Solution

The fourth proportional to 562.55, 776.67 and 363.45 is: 501.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.55 : 776.67 = 363.45 : x
  2. Step 2: Convert to fraction form
    562.55/776.67 = 363.45/x
  3. Step 3: Cross multiply
    562.55x = 776.67 × 363.45
  4. Step 4: Simplify right side
    562.55x = 282,280.71
  5. Step 5: Solve for x
    x = 282,280.71/562.55
  6. Step 6: Final answer
    x = 501.79

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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.