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Finding the Third Proportional to 310,801.50 and 479,931.75

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Solution

The third proportional to 310,801.50 and 479,931.75 is: 741,098.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,801.50 : 479,931.75 = 479,931.75 : x
  2. Step 2: Convert to fraction form
    310,801.50/479,931.75 = 479,931.75/x
  3. Step 3: Cross multiply
    310,801.50x = 479,931.75 × 479,931.75
  4. Step 4: Simplify right side
    310,801.50x = 230,334,484,658.06
  5. Step 5: Solve for x
    x = 230,334,484,658.06/310,801.50
  6. Step 6: Final answer
    x = 741,098.37

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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.