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Finding the Third Proportional to 273,807 and 420,646.50

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Solution

The third proportional to 273,807 and 420,646.50 is: 646,234.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,807 : 420,646.50 = 420,646.50 : x
  2. Step 2: Convert to fraction form
    273,807/420,646.50 = 420,646.50/x
  3. Step 3: Cross multiply
    273,807x = 420,646.50 × 420,646.50
  4. Step 4: Simplify right side
    273,807x = 176,943,477,962.25
  5. Step 5: Solve for x
    x = 176,943,477,962.25/273,807
  6. Step 6: Final answer
    x = 646,234.31

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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.