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Finding the Fourth Proportional to 576.51, 795.45 and 340.39

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Solution

The fourth proportional to 576.51, 795.45 and 340.39 is: 469.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.51 : 795.45 = 340.39 : x
  2. Step 2: Convert to fraction form
    576.51/795.45 = 340.39/x
  3. Step 3: Cross multiply
    576.51x = 795.45 × 340.39
  4. Step 4: Simplify right side
    576.51x = 270,763.23
  5. Step 5: Solve for x
    x = 270,763.23/576.51
  6. Step 6: Final answer
    x = 469.66

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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.