Home / 278,908.74-384,894.06-151,584.30

Finding the Fourth Proportional to 278,908.74, 384,894.06 and 151,584.30

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Solution

The fourth proportional to 278,908.74, 384,894.06 and 151,584.30 is: 209,186.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,908.74 : 384,894.06 = 151,584.30 : x
  2. Step 2: Convert to fraction form
    278,908.74/384,894.06 = 151,584.30/x
  3. Step 3: Cross multiply
    278,908.74x = 384,894.06 × 151,584.30
  4. Step 4: Simplify right side
    278,908.74x = 58,343,896,659.26
  5. Step 5: Solve for x
    x = 58,343,896,659.26/278,908.74
  6. Step 6: Final answer
    x = 209,186.33

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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.