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Finding the Fourth Proportional to 250,250.40, 345,260.34 and 142,743.15

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Solution

The fourth proportional to 250,250.40, 345,260.34 and 142,743.15 is: 196,936.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,250.40 : 345,260.34 = 142,743.15 : x
  2. Step 2: Convert to fraction form
    250,250.40/345,260.34 = 142,743.15/x
  3. Step 3: Cross multiply
    250,250.40x = 345,260.34 × 142,743.15
  4. Step 4: Simplify right side
    250,250.40x = 49,283,548,501.67
  5. Step 5: Solve for x
    x = 49,283,548,501.67/250,250.40
  6. Step 6: Final answer
    x = 196,936.94

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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.