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Finding the Fourth Proportional to 453,170, 625,374.60 and 251,966

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Solution

The fourth proportional to 453,170, 625,374.60 and 251,966 is: 347,713.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,170 : 625,374.60 = 251,966 : x
  2. Step 2: Convert to fraction form
    453,170/625,374.60 = 251,966/x
  3. Step 3: Cross multiply
    453,170x = 625,374.60 × 251,966
  4. Step 4: Simplify right side
    453,170x = 157,573,136,463.60
  5. Step 5: Solve for x
    x = 157,573,136,463.60/453,170
  6. Step 6: Final answer
    x = 347,713.08

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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.