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Finding the Fourth Proportional to 250,509.25, 345,707.22 and 135,791.65

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Solution

The fourth proportional to 250,509.25, 345,707.22 and 135,791.65 is: 187,394.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,509.25 : 345,707.22 = 135,791.65 : x
  2. Step 2: Convert to fraction form
    250,509.25/345,707.22 = 135,791.65/x
  3. Step 3: Cross multiply
    250,509.25x = 345,707.22 × 135,791.65
  4. Step 4: Simplify right side
    250,509.25x = 46,944,153,820.71
  5. Step 5: Solve for x
    x = 46,944,153,820.71/250,509.25
  6. Step 6: Final answer
    x = 187,394.89

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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.