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Finding the Fourth Proportional to 274,655.50, 378,992.68 and 159,959.22

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Solution

The fourth proportional to 274,655.50, 378,992.68 and 159,959.22 is: 220,725.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,655.50 : 378,992.68 = 159,959.22 : x
  2. Step 2: Convert to fraction form
    274,655.50/378,992.68 = 159,959.22/x
  3. Step 3: Cross multiply
    274,655.50x = 378,992.68 × 159,959.22
  4. Step 4: Simplify right side
    274,655.50x = 60,623,373,478.51
  5. Step 5: Solve for x
    x = 60,623,373,478.51/274,655.50
  6. Step 6: Final answer
    x = 220,725.14

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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.