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Finding the Fourth Proportional to 250,708.79, 345,976.12 and 135,987.14

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Solution

The fourth proportional to 250,708.79, 345,976.12 and 135,987.14 is: 187,661.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,708.79 : 345,976.12 = 135,987.14 : x
  2. Step 2: Convert to fraction form
    250,708.79/345,976.12 = 135,987.14/x
  3. Step 3: Cross multiply
    250,708.79x = 345,976.12 × 135,987.14
  4. Step 4: Simplify right side
    250,708.79x = 47,048,303,592.07
  5. Step 5: Solve for x
    x = 47,048,303,592.07/250,708.79
  6. Step 6: Final answer
    x = 187,661.16

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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.