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Finding the Fourth Proportional to 354,371.82, 531,409.92 and 111,150.23

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Solution

The fourth proportional to 354,371.82, 531,409.92 and 111,150.23 is: 166,678.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,371.82 : 531,409.92 = 111,150.23 : x
  2. Step 2: Convert to fraction form
    354,371.82/531,409.92 = 111,150.23/x
  3. Step 3: Cross multiply
    354,371.82x = 531,409.92 × 111,150.23
  4. Step 4: Simplify right side
    354,371.82x = 59,066,332,175.23
  5. Step 5: Solve for x
    x = 59,066,332,175.23/354,371.82
  6. Step 6: Final answer
    x = 166,678.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.