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Finding the Fourth Proportional to 308,050, 425,110.28 and 166,738

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Solution

The fourth proportional to 308,050, 425,110.28 and 166,738 is: 230,099.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,050 : 425,110.28 = 166,738 : x
  2. Step 2: Convert to fraction form
    308,050/425,110.28 = 166,738/x
  3. Step 3: Cross multiply
    308,050x = 425,110.28 × 166,738
  4. Step 4: Simplify right side
    308,050x = 70,882,037,866.64
  5. Step 5: Solve for x
    x = 70,882,037,866.64/308,050
  6. Step 6: Final answer
    x = 230,099.13

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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.