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Finding the Fourth Proportional to 312,538.02, 431,293.58 and 183,474.42

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Solution

The fourth proportional to 312,538.02, 431,293.58 and 183,474.42 is: 253,189.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,538.02 : 431,293.58 = 183,474.42 : x
  2. Step 2: Convert to fraction form
    312,538.02/431,293.58 = 183,474.42/x
  3. Step 3: Cross multiply
    312,538.02x = 431,293.58 × 183,474.42
  4. Step 4: Simplify right side
    312,538.02x = 79,131,339,440.22
  5. Step 5: Solve for x
    x = 79,131,339,440.22/312,538.02
  6. Step 6: Final answer
    x = 253,189.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.