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Finding the Third Proportional to 56,219 and 120,407

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Solution

The third proportional to 56,219 and 120,407 is: 257,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,219 : 120,407 = 120,407 : x
  2. Step 2: Convert to fraction form
    56,219/120,407 = 120,407/x
  3. Step 3: Cross multiply
    56,219x = 120,407 × 120,407
  4. Step 4: Simplify right side
    56,219x = 14,497,845,649
  5. Step 5: Solve for x
    x = 14,497,845,649/56,219
  6. Step 6: Final answer
    x = 257,881.60

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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.