Home / 320,812.22-442,721.26-199,953.40

Finding the Fourth Proportional to 320,812.22, 442,721.26 and 199,953.40

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Solution

The fourth proportional to 320,812.22, 442,721.26 and 199,953.40 is: 275,935.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,812.22 : 442,721.26 = 199,953.40 : x
  2. Step 2: Convert to fraction form
    320,812.22/442,721.26 = 199,953.40/x
  3. Step 3: Cross multiply
    320,812.22x = 442,721.26 × 199,953.40
  4. Step 4: Simplify right side
    320,812.22x = 88,523,621,189.28
  5. Step 5: Solve for x
    x = 88,523,621,189.28/320,812.22
  6. Step 6: Final answer
    x = 275,935.94

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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.