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Finding the Fourth Proportional to 590.69, 886.35 and 347.69

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Solution

The fourth proportional to 590.69, 886.35 and 347.69 is: 521.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.69 : 886.35 = 347.69 : x
  2. Step 2: Convert to fraction form
    590.69/886.35 = 347.69/x
  3. Step 3: Cross multiply
    590.69x = 886.35 × 347.69
  4. Step 4: Simplify right side
    590.69x = 308,175.03
  5. Step 5: Solve for x
    x = 308,175.03/590.69
  6. Step 6: Final answer
    x = 521.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.