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Finding the Fourth Proportional to 219,323.22, 302,659.92 and 123,838.80

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Solution

The fourth proportional to 219,323.22, 302,659.92 and 123,838.80 is: 170,894.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,323.22 : 302,659.92 = 123,838.80 : x
  2. Step 2: Convert to fraction form
    219,323.22/302,659.92 = 123,838.80/x
  3. Step 3: Cross multiply
    219,323.22x = 302,659.92 × 123,838.80
  4. Step 4: Simplify right side
    219,323.22x = 37,481,041,300.90
  5. Step 5: Solve for x
    x = 37,481,041,300.90/219,323.22
  6. Step 6: Final answer
    x = 170,894.09

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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.