Home / 320,902.11-442,736.10-184,931.78

Finding the Fourth Proportional to 320,902.11, 442,736.10 and 184,931.78

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Solution

The fourth proportional to 320,902.11, 442,736.10 and 184,931.78 is: 255,143.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,902.11 : 442,736.10 = 184,931.78 : x
  2. Step 2: Convert to fraction form
    320,902.11/442,736.10 = 184,931.78/x
  3. Step 3: Cross multiply
    320,902.11x = 442,736.10 × 184,931.78
  4. Step 4: Simplify right side
    320,902.11x = 81,875,972,829.58
  5. Step 5: Solve for x
    x = 81,875,972,829.58/320,902.11
  6. Step 6: Final answer
    x = 255,143.14

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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.