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Finding the Fourth Proportional to 320,697.88, 442,610.01 and 184,705.36

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Solution

The fourth proportional to 320,697.88, 442,610.01 and 184,705.36 is: 254,920.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,697.88 : 442,610.01 = 184,705.36 : x
  2. Step 2: Convert to fraction form
    320,697.88/442,610.01 = 184,705.36/x
  3. Step 3: Cross multiply
    320,697.88x = 442,610.01 × 184,705.36
  4. Step 4: Simplify right side
    320,697.88x = 81,752,440,130.13
  5. Step 5: Solve for x
    x = 81,752,440,130.13/320,697.88
  6. Step 6: Final answer
    x = 254,920.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.