Home / 320,492.86-442,416.33-199,693.83

Finding the Fourth Proportional to 320,492.86, 442,416.33 and 199,693.83

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Solution

The fourth proportional to 320,492.86, 442,416.33 and 199,693.83 is: 275,662.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,492.86 : 442,416.33 = 199,693.83 : x
  2. Step 2: Convert to fraction form
    320,492.86/442,416.33 = 199,693.83/x
  3. Step 3: Cross multiply
    320,492.86x = 442,416.33 × 199,693.83
  4. Step 4: Simplify right side
    320,492.86x = 88,347,808,984.33
  5. Step 5: Solve for x
    x = 88,347,808,984.33/320,492.86
  6. Step 6: Final answer
    x = 275,662.33

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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.