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Finding the Third Proportional to 430.31 and 625.22

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Solution

The third proportional to 430.31 and 625.22 is: 908.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    430.31 : 625.22 = 625.22 : x
  2. Step 2: Convert to fraction form
    430.31/625.22 = 625.22/x
  3. Step 3: Cross multiply
    430.31x = 625.22 × 625.22
  4. Step 4: Simplify right side
    430.31x = 390,898.49
  5. Step 5: Solve for x
    x = 390,898.49/430.31
  6. Step 6: Final answer
    x = 908.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.