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Finding the Fourth Proportional to 614.45, 920.06 and 325.01

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Solution

The fourth proportional to 614.45, 920.06 and 325.01 is: 486.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.45 : 920.06 = 325.01 : x
  2. Step 2: Convert to fraction form
    614.45/920.06 = 325.01/x
  3. Step 3: Cross multiply
    614.45x = 920.06 × 325.01
  4. Step 4: Simplify right side
    614.45x = 299,027.08
  5. Step 5: Solve for x
    x = 299,027.08/614.45
  6. Step 6: Final answer
    x = 486.66

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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.