Home / 278,471.36-384,291.22-151,146.96

Finding the Fourth Proportional to 278,471.36, 384,291.22 and 151,146.96

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Solution

The fourth proportional to 278,471.36, 384,291.22 and 151,146.96 is: 208,583.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,471.36 : 384,291.22 = 151,146.96 : x
  2. Step 2: Convert to fraction form
    278,471.36/384,291.22 = 151,146.96/x
  3. Step 3: Cross multiply
    278,471.36x = 384,291.22 × 151,146.96
  4. Step 4: Simplify right side
    278,471.36x = 58,084,449,657.69
  5. Step 5: Solve for x
    x = 58,084,449,657.69/278,471.36
  6. Step 6: Final answer
    x = 208,583.21

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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.