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Finding the Third Proportional to 282,139.50 and 437,353.50

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Solution

The third proportional to 282,139.50 and 437,353.50 is: 677,955.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,139.50 : 437,353.50 = 437,353.50 : x
  2. Step 2: Convert to fraction form
    282,139.50/437,353.50 = 437,353.50/x
  3. Step 3: Cross multiply
    282,139.50x = 437,353.50 × 437,353.50
  4. Step 4: Simplify right side
    282,139.50x = 191,278,083,962.25
  5. Step 5: Solve for x
    x = 191,278,083,962.25/282,139.50
  6. Step 6: Final answer
    x = 677,955.71

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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.