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Finding the Fourth Proportional to 464.48, 640.86 and 365.93

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Solution

The fourth proportional to 464.48, 640.86 and 365.93 is: 504.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.48 : 640.86 = 365.93 : x
  2. Step 2: Convert to fraction form
    464.48/640.86 = 365.93/x
  3. Step 3: Cross multiply
    464.48x = 640.86 × 365.93
  4. Step 4: Simplify right side
    464.48x = 234,510.13
  5. Step 5: Solve for x
    x = 234,510.13/464.48
  6. Step 6: Final answer
    x = 504.88

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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.