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Finding the Fourth Proportional to 464.17, 640.58 and 254.34

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Solution

The fourth proportional to 464.17, 640.58 and 254.34 is: 351.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.17 : 640.58 = 254.34 : x
  2. Step 2: Convert to fraction form
    464.17/640.58 = 254.34/x
  3. Step 3: Cross multiply
    464.17x = 640.58 × 254.34
  4. Step 4: Simplify right side
    464.17x = 162,925.12
  5. Step 5: Solve for x
    x = 162,925.12/464.17
  6. Step 6: Final answer
    x = 351.00

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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.