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Finding the Fourth Proportional to 614.16, 919.44 and 397.08

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Solution

The fourth proportional to 614.16, 919.44 and 397.08 is: 594.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.16 : 919.44 = 397.08 : x
  2. Step 2: Convert to fraction form
    614.16/919.44 = 397.08/x
  3. Step 3: Cross multiply
    614.16x = 919.44 × 397.08
  4. Step 4: Simplify right side
    614.16x = 365,091.24
  5. Step 5: Solve for x
    x = 365,091.24/614.16
  6. Step 6: Final answer
    x = 594.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.