Home / 278,469.48-384,288.30-151,145.13

Finding the Fourth Proportional to 278,469.48, 384,288.30 and 151,145.13

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Solution

The fourth proportional to 278,469.48, 384,288.30 and 151,145.13 is: 208,580.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,469.48 : 384,288.30 = 151,145.13 : x
  2. Step 2: Convert to fraction form
    278,469.48/384,288.30 = 151,145.13/x
  3. Step 3: Cross multiply
    278,469.48x = 384,288.30 × 151,145.13
  4. Step 4: Simplify right side
    278,469.48x = 58,083,305,060.98
  5. Step 5: Solve for x
    x = 58,083,305,060.98/278,469.48
  6. Step 6: Final answer
    x = 208,580.51

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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.