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Finding the Third Proportional to 358.88 and 740.63

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Solution

The third proportional to 358.88 and 740.63 is: 1,528.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.88 : 740.63 = 740.63 : x
  2. Step 2: Convert to fraction form
    358.88/740.63 = 740.63/x
  3. Step 3: Cross multiply
    358.88x = 740.63 × 740.63
  4. Step 4: Simplify right side
    358.88x = 548,525.39
  5. Step 5: Solve for x
    x = 548,525.39/358.88
  6. Step 6: Final answer
    x = 1,528.46

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.