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Finding the Fourth Proportional to 320,951.34, 442,863.12 and 184,991.61

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Solution

The fourth proportional to 320,951.34, 442,863.12 and 184,991.61 is: 255,259.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,951.34 : 442,863.12 = 184,991.61 : x
  2. Step 2: Convert to fraction form
    320,951.34/442,863.12 = 184,991.61/x
  3. Step 3: Cross multiply
    320,951.34x = 442,863.12 × 184,991.61
  4. Step 4: Simplify right side
    320,951.34x = 81,925,961,578.42
  5. Step 5: Solve for x
    x = 81,925,961,578.42/320,951.34
  6. Step 6: Final answer
    x = 255,259.76

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1.5x scale

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.