Home / 320,817.12-442,838.16-184,905.36

Finding the Fourth Proportional to 320,817.12, 442,838.16 and 184,905.36

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Solution

The fourth proportional to 320,817.12, 442,838.16 and 184,905.36 is: 255,233.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,817.12 : 442,838.16 = 184,905.36 : x
  2. Step 2: Convert to fraction form
    320,817.12/442,838.16 = 184,905.36/x
  3. Step 3: Cross multiply
    320,817.12x = 442,838.16 × 184,905.36
  4. Step 4: Simplify right side
    320,817.12x = 81,883,149,396.54
  5. Step 5: Solve for x
    x = 81,883,149,396.54/320,817.12
  6. Step 6: Final answer
    x = 255,233.10

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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.