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Finding the Fourth Proportional to 308,027.66, 425,278.08 and 275,706.23

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Solution

The fourth proportional to 308,027.66, 425,278.08 and 275,706.23 is: 380,653.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,027.66 : 425,278.08 = 275,706.23 : x
  2. Step 2: Convert to fraction form
    308,027.66/425,278.08 = 275,706.23/x
  3. Step 3: Cross multiply
    308,027.66x = 425,278.08 × 275,706.23
  4. Step 4: Simplify right side
    308,027.66x = 117,251,814,012.05
  5. Step 5: Solve for x
    x = 117,251,814,012.05/308,027.66
  6. Step 6: Final answer
    x = 380,653.53

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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.