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Finding the Fourth Proportional to 309,270.42, 426,785.94 and 181,954.22

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Solution

The fourth proportional to 309,270.42, 426,785.94 and 181,954.22 is: 251,092.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,270.42 : 426,785.94 = 181,954.22 : x
  2. Step 2: Convert to fraction form
    309,270.42/426,785.94 = 181,954.22/x
  3. Step 3: Cross multiply
    309,270.42x = 426,785.94 × 181,954.22
  4. Step 4: Simplify right side
    309,270.42x = 77,655,500,685.74
  5. Step 5: Solve for x
    x = 77,655,500,685.74/309,270.42
  6. Step 6: Final answer
    x = 251,092.56

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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.