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Finding the Fourth Proportional to 575.64, 793.80 and 342.90

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Solution

The fourth proportional to 575.64, 793.80 and 342.90 is: 472.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.64 : 793.80 = 342.90 : x
  2. Step 2: Convert to fraction form
    575.64/793.80 = 342.90/x
  3. Step 3: Cross multiply
    575.64x = 793.80 × 342.90
  4. Step 4: Simplify right side
    575.64x = 272,194.02
  5. Step 5: Solve for x
    x = 272,194.02/575.64
  6. Step 6: Final answer
    x = 472.85

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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.