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Finding the Third Proportional to 288,209 and 460,420

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Solution

The third proportional to 288,209 and 460,420 is: 735,530.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,209 : 460,420 = 460,420 : x
  2. Step 2: Convert to fraction form
    288,209/460,420 = 460,420/x
  3. Step 3: Cross multiply
    288,209x = 460,420 × 460,420
  4. Step 4: Simplify right side
    288,209x = 211,986,576,400
  5. Step 5: Solve for x
    x = 211,986,576,400/288,209
  6. Step 6: Final answer
    x = 735,530.73

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.