Home / 278,404.08-384,198.66-151,079.64

Finding the Fourth Proportional to 278,404.08, 384,198.66 and 151,079.64

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Solution

The fourth proportional to 278,404.08, 384,198.66 and 151,079.64 is: 208,490.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,404.08 : 384,198.66 = 151,079.64 : x
  2. Step 2: Convert to fraction form
    278,404.08/384,198.66 = 151,079.64/x
  3. Step 3: Cross multiply
    278,404.08x = 384,198.66 × 151,079.64
  4. Step 4: Simplify right side
    278,404.08x = 58,044,595,241.28
  5. Step 5: Solve for x
    x = 58,044,595,241.28/278,404.08
  6. Step 6: Final answer
    x = 208,490.46

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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.