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Finding the Third Proportional to 130,815 and 201,325.50

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Solution

The third proportional to 130,815 and 201,325.50 is: 309,841.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,815 : 201,325.50 = 201,325.50 : x
  2. Step 2: Convert to fraction form
    130,815/201,325.50 = 201,325.50/x
  3. Step 3: Cross multiply
    130,815x = 201,325.50 × 201,325.50
  4. Step 4: Simplify right side
    130,815x = 40,531,956,950.25
  5. Step 5: Solve for x
    x = 40,531,956,950.25/130,815
  6. Step 6: Final answer
    x = 309,841.81

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.