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Finding the Fourth Proportional to 376.99, 521.15 and 373.50

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Solution

The fourth proportional to 376.99, 521.15 and 373.50 is: 516.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.99 : 521.15 = 373.50 : x
  2. Step 2: Convert to fraction form
    376.99/521.15 = 373.50/x
  3. Step 3: Cross multiply
    376.99x = 521.15 × 373.50
  4. Step 4: Simplify right side
    376.99x = 194,649.53
  5. Step 5: Solve for x
    x = 194,649.53/376.99
  6. Step 6: Final answer
    x = 516.33

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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.