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Finding the Third Proportional to 216,036 and 316,758

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Solution

The third proportional to 216,036 and 316,758 is: 464,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,036 : 316,758 = 316,758 : x
  2. Step 2: Convert to fraction form
    216,036/316,758 = 316,758/x
  3. Step 3: Cross multiply
    216,036x = 316,758 × 316,758
  4. Step 4: Simplify right side
    216,036x = 100,335,630,564
  5. Step 5: Solve for x
    x = 100,335,630,564/216,036
  6. Step 6: Final answer
    x = 464,439.40

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.