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Finding the Third Proportional to 130,347 and 201,511

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Solution

The third proportional to 130,347 and 201,511 is: 311,527.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,347 : 201,511 = 201,511 : x
  2. Step 2: Convert to fraction form
    130,347/201,511 = 201,511/x
  3. Step 3: Cross multiply
    130,347x = 201,511 × 201,511
  4. Step 4: Simplify right side
    130,347x = 40,606,683,121
  5. Step 5: Solve for x
    x = 40,606,683,121/130,347
  6. Step 6: Final answer
    x = 311,527.56

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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.