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Finding the Third Proportional to 187,040 and 400,880

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Solution

The third proportional to 187,040 and 400,880 is: 859,200.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,040 : 400,880 = 400,880 : x
  2. Step 2: Convert to fraction form
    187,040/400,880 = 400,880/x
  3. Step 3: Cross multiply
    187,040x = 400,880 × 400,880
  4. Step 4: Simplify right side
    187,040x = 160,704,774,400
  5. Step 5: Solve for x
    x = 160,704,774,400/187,040
  6. Step 6: Final answer
    x = 859,200.03

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.