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Finding the Fourth Proportional to 346.32, 515.79 and 337.80

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Solution

The fourth proportional to 346.32, 515.79 and 337.80 is: 503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.32 : 515.79 = 337.80 : x
  2. Step 2: Convert to fraction form
    346.32/515.79 = 337.80/x
  3. Step 3: Cross multiply
    346.32x = 515.79 × 337.80
  4. Step 4: Simplify right side
    346.32x = 174,233.86
  5. Step 5: Solve for x
    x = 174,233.86/346.32
  6. Step 6: Final answer
    x = 503.10

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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.