Home / 278,178.16-416,586.66-251,221.36

Finding the Fourth Proportional to 278,178.16, 416,586.66 and 251,221.36

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Solution

The fourth proportional to 278,178.16, 416,586.66 and 251,221.36 is: 376,217.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,178.16 : 416,586.66 = 251,221.36 : x
  2. Step 2: Convert to fraction form
    278,178.16/416,586.66 = 251,221.36/x
  3. Step 3: Cross multiply
    278,178.16x = 416,586.66 × 251,221.36
  4. Step 4: Simplify right side
    278,178.16x = 104,655,467,283.06
  5. Step 5: Solve for x
    x = 104,655,467,283.06/278,178.16
  6. Step 6: Final answer
    x = 376,217.41

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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.