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Finding the Fourth Proportional to 551.61, 828.33 and 461.01

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Solution

The fourth proportional to 551.61, 828.33 and 461.01 is: 692.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.61 : 828.33 = 461.01 : x
  2. Step 2: Convert to fraction form
    551.61/828.33 = 461.01/x
  3. Step 3: Cross multiply
    551.61x = 828.33 × 461.01
  4. Step 4: Simplify right side
    551.61x = 381,868.41
  5. Step 5: Solve for x
    x = 381,868.41/551.61
  6. Step 6: Final answer
    x = 692.28

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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.