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Finding the Fourth Proportional to 575.72, 794.40 and 342.89

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Solution

The fourth proportional to 575.72, 794.40 and 342.89 is: 473.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.72 : 794.40 = 342.89 : x
  2. Step 2: Convert to fraction form
    575.72/794.40 = 342.89/x
  3. Step 3: Cross multiply
    575.72x = 794.40 × 342.89
  4. Step 4: Simplify right side
    575.72x = 272,391.82
  5. Step 5: Solve for x
    x = 272,391.82/575.72
  6. Step 6: Final answer
    x = 473.13

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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.