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Finding the Fourth Proportional to 341,481.76, 470,806.75 and 280,001.43

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Solution

The fourth proportional to 341,481.76, 470,806.75 and 280,001.43 is: 386,042.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,481.76 : 470,806.75 = 280,001.43 : x
  2. Step 2: Convert to fraction form
    341,481.76/470,806.75 = 280,001.43/x
  3. Step 3: Cross multiply
    341,481.76x = 470,806.75 × 280,001.43
  4. Step 4: Simplify right side
    341,481.76x = 131,826,563,943.42
  5. Step 5: Solve for x
    x = 131,826,563,943.42/341,481.76
  6. Step 6: Final answer
    x = 386,042.77

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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.