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Finding the Fourth Proportional to 337.36, 465.24 and 312.22

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Solution

The fourth proportional to 337.36, 465.24 and 312.22 is: 430.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.36 : 465.24 = 312.22 : x
  2. Step 2: Convert to fraction form
    337.36/465.24 = 312.22/x
  3. Step 3: Cross multiply
    337.36x = 465.24 × 312.22
  4. Step 4: Simplify right side
    337.36x = 145,257.23
  5. Step 5: Solve for x
    x = 145,257.23/337.36
  6. Step 6: Final answer
    x = 430.57

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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.