Home / 320,861.72-442,835.51-184,869.61

Finding the Fourth Proportional to 320,861.72, 442,835.51 and 184,869.61

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Solution

The fourth proportional to 320,861.72, 442,835.51 and 184,869.61 is: 255,146.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,861.72 : 442,835.51 = 184,869.61 : x
  2. Step 2: Convert to fraction form
    320,861.72/442,835.51 = 184,869.61/x
  3. Step 3: Cross multiply
    320,861.72x = 442,835.51 × 184,869.61
  4. Step 4: Simplify right side
    320,861.72x = 81,866,825,996.41
  5. Step 5: Solve for x
    x = 81,866,825,996.41/320,861.72
  6. Step 6: Final answer
    x = 255,146.75

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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.