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Finding the Fourth Proportional to 301,512.78, 452,334.78 and 91,145.25

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Solution

The fourth proportional to 301,512.78, 452,334.78 and 91,145.25 is: 136,737.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,512.78 : 452,334.78 = 91,145.25 : x
  2. Step 2: Convert to fraction form
    301,512.78/452,334.78 = 91,145.25/x
  3. Step 3: Cross multiply
    301,512.78x = 452,334.78 × 91,145.25
  4. Step 4: Simplify right side
    301,512.78x = 41,228,166,606.80
  5. Step 5: Solve for x
    x = 41,228,166,606.80/301,512.78
  6. Step 6: Final answer
    x = 136,737.71

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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.