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Finding the Third Proportional to 302,821.50 and 637,030.50

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Solution

The third proportional to 302,821.50 and 637,030.50 is: 1,340,089.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,821.50 : 637,030.50 = 637,030.50 : x
  2. Step 2: Convert to fraction form
    302,821.50/637,030.50 = 637,030.50/x
  3. Step 3: Cross multiply
    302,821.50x = 637,030.50 × 637,030.50
  4. Step 4: Simplify right side
    302,821.50x = 405,807,857,930.25
  5. Step 5: Solve for x
    x = 405,807,857,930.25/302,821.50
  6. Step 6: Final answer
    x = 1,340,089.32

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.