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Finding the Fourth Proportional to 556.17, 833.18 and 511.89

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Solution

The fourth proportional to 556.17, 833.18 and 511.89 is: 766.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.17 : 833.18 = 511.89 : x
  2. Step 2: Convert to fraction form
    556.17/833.18 = 511.89/x
  3. Step 3: Cross multiply
    556.17x = 833.18 × 511.89
  4. Step 4: Simplify right side
    556.17x = 426,493.95
  5. Step 5: Solve for x
    x = 426,493.95/556.17
  6. Step 6: Final answer
    x = 766.84

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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.