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Finding the Fourth Proportional to 551.65, 826.25 and 368.18

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Solution

The fourth proportional to 551.65, 826.25 and 368.18 is: 551.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.65 : 826.25 = 368.18 : x
  2. Step 2: Convert to fraction form
    551.65/826.25 = 368.18/x
  3. Step 3: Cross multiply
    551.65x = 826.25 × 368.18
  4. Step 4: Simplify right side
    551.65x = 304,209.65
  5. Step 5: Solve for x
    x = 304,209.65/551.65
  6. Step 6: Final answer
    x = 551.46

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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.