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Finding the Fourth Proportional to 445.41, 614.06 and 383.89

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Solution

The fourth proportional to 445.41, 614.06 and 383.89 is: 529.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.41 : 614.06 = 383.89 : x
  2. Step 2: Convert to fraction form
    445.41/614.06 = 383.89/x
  3. Step 3: Cross multiply
    445.41x = 614.06 × 383.89
  4. Step 4: Simplify right side
    445.41x = 235,731.49
  5. Step 5: Solve for x
    x = 235,731.49/445.41
  6. Step 6: Final answer
    x = 529.25

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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.