Home / 320,402.30-442,091.16-177,134.63

Finding the Fourth Proportional to 320,402.30, 442,091.16 and 177,134.63

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Solution

The fourth proportional to 320,402.30, 442,091.16 and 177,134.63 is: 244,410.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,402.30 : 442,091.16 = 177,134.63 : x
  2. Step 2: Convert to fraction form
    320,402.30/442,091.16 = 177,134.63/x
  3. Step 3: Cross multiply
    320,402.30x = 442,091.16 × 177,134.63
  4. Step 4: Simplify right side
    320,402.30x = 78,309,651,842.42
  5. Step 5: Solve for x
    x = 78,309,651,842.42/320,402.30
  6. Step 6: Final answer
    x = 244,410.40

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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.