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Finding the Third Proportional to 190,360.13 and 278,979.19

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Solution

The third proportional to 190,360.13 and 278,979.19 is: 408,853.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,360.13 : 278,979.19 = 278,979.19 : x
  2. Step 2: Convert to fraction form
    190,360.13/278,979.19 = 278,979.19/x
  3. Step 3: Cross multiply
    190,360.13x = 278,979.19 × 278,979.19
  4. Step 4: Simplify right side
    190,360.13x = 77,829,387,058.16
  5. Step 5: Solve for x
    x = 77,829,387,058.16/190,360.13
  6. Step 6: Final answer
    x = 408,853.41

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.