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Finding the Fourth Proportional to 511.03, 767.22 and 303.18

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Solution

The fourth proportional to 511.03, 767.22 and 303.18 is: 455.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.03 : 767.22 = 303.18 : x
  2. Step 2: Convert to fraction form
    511.03/767.22 = 303.18/x
  3. Step 3: Cross multiply
    511.03x = 767.22 × 303.18
  4. Step 4: Simplify right side
    511.03x = 232,603.45
  5. Step 5: Solve for x
    x = 232,603.45/511.03
  6. Step 6: Final answer
    x = 455.17

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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.