Home / 278,837.09-384,797.62-151,512.69

Finding the Fourth Proportional to 278,837.09, 384,797.62 and 151,512.69

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Solution

The fourth proportional to 278,837.09, 384,797.62 and 151,512.69 is: 209,088.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,837.09 : 384,797.62 = 151,512.69 : x
  2. Step 2: Convert to fraction form
    278,837.09/384,797.62 = 151,512.69/x
  3. Step 3: Cross multiply
    278,837.09x = 384,797.62 × 151,512.69
  4. Step 4: Simplify right side
    278,837.09x = 58,301,722,511.80
  5. Step 5: Solve for x
    x = 58,301,722,511.80/278,837.09
  6. Step 6: Final answer
    x = 209,088.84

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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.