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Finding the Fourth Proportional to 585.84, 808.80 and 353.04

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Solution

The fourth proportional to 585.84, 808.80 and 353.04 is: 487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.84 : 808.80 = 353.04 : x
  2. Step 2: Convert to fraction form
    585.84/808.80 = 353.04/x
  3. Step 3: Cross multiply
    585.84x = 808.80 × 353.04
  4. Step 4: Simplify right side
    585.84x = 285,538.75
  5. Step 5: Solve for x
    x = 285,538.75/585.84
  6. Step 6: Final answer
    x = 487.40

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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.