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Finding the Fourth Proportional to 340.96, 508.16 and 340.42

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Solution

The fourth proportional to 340.96, 508.16 and 340.42 is: 507.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.96 : 508.16 = 340.42 : x
  2. Step 2: Convert to fraction form
    340.96/508.16 = 340.42/x
  3. Step 3: Cross multiply
    340.96x = 508.16 × 340.42
  4. Step 4: Simplify right side
    340.96x = 172,987.83
  5. Step 5: Solve for x
    x = 172,987.83/340.96
  6. Step 6: Final answer
    x = 507.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.