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Finding the Fourth Proportional to 575.29, 793.88 and 313.30

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Solution

The fourth proportional to 575.29, 793.88 and 313.30 is: 432.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.29 : 793.88 = 313.30 : x
  2. Step 2: Convert to fraction form
    575.29/793.88 = 313.30/x
  3. Step 3: Cross multiply
    575.29x = 793.88 × 313.30
  4. Step 4: Simplify right side
    575.29x = 248,722.60
  5. Step 5: Solve for x
    x = 248,722.60/575.29
  6. Step 6: Final answer
    x = 432.34

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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.