Home / 278,844.22-384,807.44-151,519.81

Finding the Fourth Proportional to 278,844.22, 384,807.44 and 151,519.81

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Solution

The fourth proportional to 278,844.22, 384,807.44 and 151,519.81 is: 209,098.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,844.22 : 384,807.44 = 151,519.81 : x
  2. Step 2: Convert to fraction form
    278,844.22/384,807.44 = 151,519.81/x
  3. Step 3: Cross multiply
    278,844.22x = 384,807.44 × 151,519.81
  4. Step 4: Simplify right side
    278,844.22x = 58,305,948,475.77
  5. Step 5: Solve for x
    x = 58,305,948,475.77/278,844.22
  6. Step 6: Final answer
    x = 209,098.65

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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.