Home / 278,877.36-384,855.66-158,015.64

Finding the Fourth Proportional to 278,877.36, 384,855.66 and 158,015.64

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Solution

The fourth proportional to 278,877.36, 384,855.66 and 158,015.64 is: 218,064.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,877.36 : 384,855.66 = 158,015.64 : x
  2. Step 2: Convert to fraction form
    278,877.36/384,855.66 = 158,015.64/x
  3. Step 3: Cross multiply
    278,877.36x = 384,855.66 × 158,015.64
  4. Step 4: Simplify right side
    278,877.36x = 60,813,213,422.52
  5. Step 5: Solve for x
    x = 60,813,213,422.52/278,877.36
  6. Step 6: Final answer
    x = 218,064.36

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1.5x scale

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.