Home / 278,444.66-384,251.36-151,120.28

Finding the Fourth Proportional to 278,444.66, 384,251.36 and 151,120.28

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Solution

The fourth proportional to 278,444.66, 384,251.36 and 151,120.28 is: 208,544.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,444.66 : 384,251.36 = 151,120.28 : x
  2. Step 2: Convert to fraction form
    278,444.66/384,251.36 = 151,120.28/x
  3. Step 3: Cross multiply
    278,444.66x = 384,251.36 × 151,120.28
  4. Step 4: Simplify right side
    278,444.66x = 58,068,170,436.72
  5. Step 5: Solve for x
    x = 58,068,170,436.72/278,444.66
  6. Step 6: Final answer
    x = 208,544.75

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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.