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Finding the Fourth Proportional to 444.36, 614.19 and 391.50

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Solution

The fourth proportional to 444.36, 614.19 and 391.50 is: 541.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.36 : 614.19 = 391.50 : x
  2. Step 2: Convert to fraction form
    444.36/614.19 = 391.50/x
  3. Step 3: Cross multiply
    444.36x = 614.19 × 391.50
  4. Step 4: Simplify right side
    444.36x = 240,455.39
  5. Step 5: Solve for x
    x = 240,455.39/444.36
  6. Step 6: Final answer
    x = 541.13

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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.