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Finding the Fourth Proportional to 376.34, 519.48 and 302.53

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Solution

The fourth proportional to 376.34, 519.48 and 302.53 is: 417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.34 : 519.48 = 302.53 : x
  2. Step 2: Convert to fraction form
    376.34/519.48 = 302.53/x
  3. Step 3: Cross multiply
    376.34x = 519.48 × 302.53
  4. Step 4: Simplify right side
    376.34x = 157,158.28
  5. Step 5: Solve for x
    x = 157,158.28/376.34
  6. Step 6: Final answer
    x = 417.60

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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.