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Finding the Fourth Proportional to 349,532.31, 482,202.81 and 222,139.56

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Solution

The fourth proportional to 349,532.31, 482,202.81 and 222,139.56 is: 306,456.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,532.31 : 482,202.81 = 222,139.56 : x
  2. Step 2: Convert to fraction form
    349,532.31/482,202.81 = 222,139.56/x
  3. Step 3: Cross multiply
    349,532.31x = 482,202.81 × 222,139.56
  4. Step 4: Simplify right side
    349,532.31x = 107,116,320,044.16
  5. Step 5: Solve for x
    x = 107,116,320,044.16/349,532.31
  6. Step 6: Final answer
    x = 306,456.13

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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.