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Finding the Fourth Proportional to 445.07, 614.30 and 270.38

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Solution

The fourth proportional to 445.07, 614.30 and 270.38 is: 373.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.07 : 614.30 = 270.38 : x
  2. Step 2: Convert to fraction form
    445.07/614.30 = 270.38/x
  3. Step 3: Cross multiply
    445.07x = 614.30 × 270.38
  4. Step 4: Simplify right side
    445.07x = 166,090.01
  5. Step 5: Solve for x
    x = 166,090.01/445.07
  6. Step 6: Final answer
    x = 373.18

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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.