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Finding the Fourth Proportional to 557.36, 832.66 and 482.96

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Solution

The fourth proportional to 557.36, 832.66 and 482.96 is: 721.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.36 : 832.66 = 482.96 : x
  2. Step 2: Convert to fraction form
    557.36/832.66 = 482.96/x
  3. Step 3: Cross multiply
    557.36x = 832.66 × 482.96
  4. Step 4: Simplify right side
    557.36x = 402,141.47
  5. Step 5: Solve for x
    x = 402,141.47/557.36
  6. Step 6: Final answer
    x = 721.51

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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.