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Finding the Fourth Proportional to 430.37, 594.09 and 331.95

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Solution

The fourth proportional to 430.37, 594.09 and 331.95 is: 458.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    430.37 : 594.09 = 331.95 : x
  2. Step 2: Convert to fraction form
    430.37/594.09 = 331.95/x
  3. Step 3: Cross multiply
    430.37x = 594.09 × 331.95
  4. Step 4: Simplify right side
    430.37x = 197,208.18
  5. Step 5: Solve for x
    x = 197,208.18/430.37
  6. Step 6: Final answer
    x = 458.23

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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.