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Finding the Fourth Proportional to 250,033.63, 345,043.76 and 135,309.79

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Solution

The fourth proportional to 250,033.63, 345,043.76 and 135,309.79 is: 186,726.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,033.63 : 345,043.76 = 135,309.79 : x
  2. Step 2: Convert to fraction form
    250,033.63/345,043.76 = 135,309.79/x
  3. Step 3: Cross multiply
    250,033.63x = 345,043.76 × 135,309.79
  4. Step 4: Simplify right side
    250,033.63x = 46,687,797,319.47
  5. Step 5: Solve for x
    x = 46,687,797,319.47/250,033.63
  6. Step 6: Final answer
    x = 186,726.07

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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.