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Finding the Fourth Proportional to 585.29, 807.80 and 349.25

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Solution

The fourth proportional to 585.29, 807.80 and 349.25 is: 482.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.29 : 807.80 = 349.25 : x
  2. Step 2: Convert to fraction form
    585.29/807.80 = 349.25/x
  3. Step 3: Cross multiply
    585.29x = 807.80 × 349.25
  4. Step 4: Simplify right side
    585.29x = 282,118.36
  5. Step 5: Solve for x
    x = 282,118.36/585.29
  6. Step 6: Final answer
    x = 482.02

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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.