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Finding the Third Proportional to 143,332 and 312,043

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Solution

The third proportional to 143,332 and 312,043 is: 679,337.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,332 : 312,043 = 312,043 : x
  2. Step 2: Convert to fraction form
    143,332/312,043 = 312,043/x
  3. Step 3: Cross multiply
    143,332x = 312,043 × 312,043
  4. Step 4: Simplify right side
    143,332x = 97,370,833,849
  5. Step 5: Solve for x
    x = 97,370,833,849/143,332
  6. Step 6: Final answer
    x = 679,337.72

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.