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Finding the Fourth Proportional to 557.84, 836.48 and 265.10

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Solution

The fourth proportional to 557.84, 836.48 and 265.10 is: 397.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.84 : 836.48 = 265.10 : x
  2. Step 2: Convert to fraction form
    557.84/836.48 = 265.10/x
  3. Step 3: Cross multiply
    557.84x = 836.48 × 265.10
  4. Step 4: Simplify right side
    557.84x = 221,745.34
  5. Step 5: Solve for x
    x = 221,745.34/557.84
  6. Step 6: Final answer
    x = 397.51

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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.