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Finding the Fourth Proportional to 250,241.93, 345,329.97 and 142,809.20

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Solution

The fourth proportional to 250,241.93, 345,329.97 and 142,809.20 is: 197,074.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,241.93 : 345,329.97 = 142,809.20 : x
  2. Step 2: Convert to fraction form
    250,241.93/345,329.97 = 142,809.20/x
  3. Step 3: Cross multiply
    250,241.93x = 345,329.97 × 142,809.20
  4. Step 4: Simplify right side
    250,241.93x = 49,316,296,751.72
  5. Step 5: Solve for x
    x = 49,316,296,751.72/250,241.93
  6. Step 6: Final answer
    x = 197,074.47

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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.