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Finding the Fourth Proportional to 559.08, 767.13 and 549.36

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Solution

The fourth proportional to 559.08, 767.13 and 549.36 is: 753.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.08 : 767.13 = 549.36 : x
  2. Step 2: Convert to fraction form
    559.08/767.13 = 549.36/x
  3. Step 3: Cross multiply
    559.08x = 767.13 × 549.36
  4. Step 4: Simplify right side
    559.08x = 421,430.54
  5. Step 5: Solve for x
    x = 421,430.54/559.08
  6. Step 6: Final answer
    x = 753.79

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.