Home / 278,061.40-416,936.58-91,057.24

Finding the Fourth Proportional to 278,061.40, 416,936.58 and 91,057.24

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Solution

The fourth proportional to 278,061.40, 416,936.58 and 91,057.24 is: 136,534.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,061.40 : 416,936.58 = 91,057.24 : x
  2. Step 2: Convert to fraction form
    278,061.40/416,936.58 = 91,057.24/x
  3. Step 3: Cross multiply
    278,061.40x = 416,936.58 × 91,057.24
  4. Step 4: Simplify right side
    278,061.40x = 37,965,094,229.84
  5. Step 5: Solve for x
    x = 37,965,094,229.84/278,061.40
  6. Step 6: Final answer
    x = 136,534.93

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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.