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Finding the Fourth Proportional to 308,299.67, 425,507.67 and 179,278.05

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Solution

The fourth proportional to 308,299.67, 425,507.67 and 179,278.05 is: 247,435.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,299.67 : 425,507.67 = 179,278.05 : x
  2. Step 2: Convert to fraction form
    308,299.67/425,507.67 = 179,278.05/x
  3. Step 3: Cross multiply
    308,299.67x = 425,507.67 × 179,278.05
  4. Step 4: Simplify right side
    308,299.67x = 76,284,185,337.64
  5. Step 5: Solve for x
    x = 76,284,185,337.64/308,299.67
  6. Step 6: Final answer
    x = 247,435.19

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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.