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Finding the Third Proportional to 133,658 and 288,210

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Solution

The third proportional to 133,658 and 288,210 is: 621,474.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,658 : 288,210 = 288,210 : x
  2. Step 2: Convert to fraction form
    133,658/288,210 = 288,210/x
  3. Step 3: Cross multiply
    133,658x = 288,210 × 288,210
  4. Step 4: Simplify right side
    133,658x = 83,065,004,100
  5. Step 5: Solve for x
    x = 83,065,004,100/133,658
  6. Step 6: Final answer
    x = 621,474.24

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.