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Finding the Fourth Proportional to 250,509.75, 345,707.91 and 135,792.15

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Solution

The fourth proportional to 250,509.75, 345,707.91 and 135,792.15 is: 187,395.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,509.75 : 345,707.91 = 135,792.15 : x
  2. Step 2: Convert to fraction form
    250,509.75/345,707.91 = 135,792.15/x
  3. Step 3: Cross multiply
    250,509.75x = 345,707.91 × 135,792.15
  4. Step 4: Simplify right side
    250,509.75x = 46,944,420,370.91
  5. Step 5: Solve for x
    x = 46,944,420,370.91/250,509.75
  6. Step 6: Final answer
    x = 187,395.58

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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.