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Finding the Third Proportional to 228,043.50 and 315,955.50

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Solution

The third proportional to 228,043.50 and 315,955.50 is: 437,758.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,043.50 : 315,955.50 = 315,955.50 : x
  2. Step 2: Convert to fraction form
    228,043.50/315,955.50 = 315,955.50/x
  3. Step 3: Cross multiply
    228,043.50x = 315,955.50 × 315,955.50
  4. Step 4: Simplify right side
    228,043.50x = 99,827,877,980.25
  5. Step 5: Solve for x
    x = 99,827,877,980.25/228,043.50
  6. Step 6: Final answer
    x = 437,758.05

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.