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Finding the Fourth Proportional to 460.72, 689.52 and 351.88

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Solution

The fourth proportional to 460.72, 689.52 and 351.88 is: 526.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.72 : 689.52 = 351.88 : x
  2. Step 2: Convert to fraction form
    460.72/689.52 = 351.88/x
  3. Step 3: Cross multiply
    460.72x = 689.52 × 351.88
  4. Step 4: Simplify right side
    460.72x = 242,628.30
  5. Step 5: Solve for x
    x = 242,628.30/460.72
  6. Step 6: Final answer
    x = 526.63

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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.