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Finding the Fourth Proportional to 453,172, 625,377.36 and 251,968

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Solution

The fourth proportional to 453,172, 625,377.36 and 251,968 is: 347,715.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,172 : 625,377.36 = 251,968 : x
  2. Step 2: Convert to fraction form
    453,172/625,377.36 = 251,968/x
  3. Step 3: Cross multiply
    453,172x = 625,377.36 × 251,968
  4. Step 4: Simplify right side
    453,172x = 157,575,082,644.48
  5. Step 5: Solve for x
    x = 157,575,082,644.48/453,172
  6. Step 6: Final answer
    x = 347,715.84

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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.