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Finding the Third Proportional to 213,459 and 334,840.50

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Solution

The third proportional to 213,459 and 334,840.50 is: 525,244.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,459 : 334,840.50 = 334,840.50 : x
  2. Step 2: Convert to fraction form
    213,459/334,840.50 = 334,840.50/x
  3. Step 3: Cross multiply
    213,459x = 334,840.50 × 334,840.50
  4. Step 4: Simplify right side
    213,459x = 112,118,160,440.25
  5. Step 5: Solve for x
    x = 112,118,160,440.25/213,459
  6. Step 6: Final answer
    x = 525,244.48

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.