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Finding the Fourth Proportional to 376.00, 519.55 and 312.89

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Solution

The fourth proportional to 376.00, 519.55 and 312.89 is: 432.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.00 : 519.55 = 312.89 : x
  2. Step 2: Convert to fraction form
    376.00/519.55 = 312.89/x
  3. Step 3: Cross multiply
    376.00x = 519.55 × 312.89
  4. Step 4: Simplify right side
    376.00x = 162,558.62
  5. Step 5: Solve for x
    x = 162,558.62/376.00
  6. Step 6: Final answer
    x = 432.34

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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.