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Finding the Third Proportional to 156,090 and 368,343

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Solution

The third proportional to 156,090 and 368,343 is: 869,220.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,090 : 368,343 = 368,343 : x
  2. Step 2: Convert to fraction form
    156,090/368,343 = 368,343/x
  3. Step 3: Cross multiply
    156,090x = 368,343 × 368,343
  4. Step 4: Simplify right side
    156,090x = 135,676,565,649
  5. Step 5: Solve for x
    x = 135,676,565,649/156,090
  6. Step 6: Final answer
    x = 869,220.10

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.