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Finding the Third Proportional to 297,897.75 and 638,437.50

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Solution

The third proportional to 297,897.75 and 638,437.50 is: 1,368,262.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,897.75 : 638,437.50 = 638,437.50 : x
  2. Step 2: Convert to fraction form
    297,897.75/638,437.50 = 638,437.50/x
  3. Step 3: Cross multiply
    297,897.75x = 638,437.50 × 638,437.50
  4. Step 4: Simplify right side
    297,897.75x = 407,602,441,406.25
  5. Step 5: Solve for x
    x = 407,602,441,406.25/297,897.75
  6. Step 6: Final answer
    x = 1,368,262.91

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.