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Finding the Fourth Proportional to 551.66, 822.83 and 469.58

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Solution

The fourth proportional to 551.66, 822.83 and 469.58 is: 700.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.66 : 822.83 = 469.58 : x
  2. Step 2: Convert to fraction form
    551.66/822.83 = 469.58/x
  3. Step 3: Cross multiply
    551.66x = 822.83 × 469.58
  4. Step 4: Simplify right side
    551.66x = 386,378.05
  5. Step 5: Solve for x
    x = 386,378.05/551.66
  6. Step 6: Final answer
    x = 700.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.