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Finding the Fourth Proportional to 250,348.67, 345,494.99 and 142,953.20

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Solution

The fourth proportional to 250,348.67, 345,494.99 and 142,953.20 is: 197,283.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,348.67 : 345,494.99 = 142,953.20 : x
  2. Step 2: Convert to fraction form
    250,348.67/345,494.99 = 142,953.20/x
  3. Step 3: Cross multiply
    250,348.67x = 345,494.99 × 142,953.20
  4. Step 4: Simplify right side
    250,348.67x = 49,389,613,034.38
  5. Step 5: Solve for x
    x = 49,389,613,034.38/250,348.67
  6. Step 6: Final answer
    x = 197,283.31

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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.