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Finding the Fourth Proportional to 577.56, 866.10 and 284.89

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Solution

The fourth proportional to 577.56, 866.10 and 284.89 is: 427.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.56 : 866.10 = 284.89 : x
  2. Step 2: Convert to fraction form
    577.56/866.10 = 284.89/x
  3. Step 3: Cross multiply
    577.56x = 866.10 × 284.89
  4. Step 4: Simplify right side
    577.56x = 246,743.23
  5. Step 5: Solve for x
    x = 246,743.23/577.56
  6. Step 6: Final answer
    x = 427.22

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1.5x scale

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.