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Finding the Fourth Proportional to 566.84, 782.32 and 345.82

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Solution

The fourth proportional to 566.84, 782.32 and 345.82 is: 477.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    566.84 : 782.32 = 345.82 : x
  2. Step 2: Convert to fraction form
    566.84/782.32 = 345.82/x
  3. Step 3: Cross multiply
    566.84x = 782.32 × 345.82
  4. Step 4: Simplify right side
    566.84x = 270,541.90
  5. Step 5: Solve for x
    x = 270,541.90/566.84
  6. Step 6: Final answer
    x = 477.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.