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Finding the Fourth Proportional to 303,520.97, 418,856.63 and 167,555.07

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Solution

The fourth proportional to 303,520.97, 418,856.63 and 167,555.07 is: 231,224.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,520.97 : 418,856.63 = 167,555.07 : x
  2. Step 2: Convert to fraction form
    303,520.97/418,856.63 = 167,555.07/x
  3. Step 3: Cross multiply
    303,520.97x = 418,856.63 × 167,555.07
  4. Step 4: Simplify right side
    303,520.97x = 70,181,551,710.94
  5. Step 5: Solve for x
    x = 70,181,551,710.94/303,520.97
  6. Step 6: Final answer
    x = 231,224.72

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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.