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Finding the Fourth Proportional to 568.27, 784.04 and 346.99

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Solution

The fourth proportional to 568.27, 784.04 and 346.99 is: 478.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.27 : 784.04 = 346.99 : x
  2. Step 2: Convert to fraction form
    568.27/784.04 = 346.99/x
  3. Step 3: Cross multiply
    568.27x = 784.04 × 346.99
  4. Step 4: Simplify right side
    568.27x = 272,054.04
  5. Step 5: Solve for x
    x = 272,054.04/568.27
  6. Step 6: Final answer
    x = 478.74

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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.