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Finding the Fourth Proportional to 300,938.77, 415,325.21 and 171,896.54

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Solution

The fourth proportional to 300,938.77, 415,325.21 and 171,896.54 is: 237,234.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,938.77 : 415,325.21 = 171,896.54 : x
  2. Step 2: Convert to fraction form
    300,938.77/415,325.21 = 171,896.54/x
  3. Step 3: Cross multiply
    300,938.77x = 415,325.21 × 171,896.54
  4. Step 4: Simplify right side
    300,938.77x = 71,392,963,637.66
  5. Step 5: Solve for x
    x = 71,392,963,637.66/300,938.77
  6. Step 6: Final answer
    x = 237,234.19

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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.