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Finding the Third Proportional to 929.63 and 1,440.19

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Solution

The third proportional to 929.63 and 1,440.19 is: 2,231.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    929.63 : 1,440.19 = 1,440.19 : x
  2. Step 2: Convert to fraction form
    929.63/1,440.19 = 1,440.19/x
  3. Step 3: Cross multiply
    929.63x = 1,440.19 × 1,440.19
  4. Step 4: Simplify right side
    929.63x = 2,074,140.04
  5. Step 5: Solve for x
    x = 2,074,140.04/929.63
  6. Step 6: Final answer
    x = 2,231.16

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.