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Finding the Fourth Proportional to 422,548.34, 583,121.30 and 231,557.63

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Solution

The fourth proportional to 422,548.34, 583,121.30 and 231,557.63 is: 319,552.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,548.34 : 583,121.30 = 231,557.63 : x
  2. Step 2: Convert to fraction form
    422,548.34/583,121.30 = 231,557.63/x
  3. Step 3: Cross multiply
    422,548.34x = 583,121.30 × 231,557.63
  4. Step 4: Simplify right side
    422,548.34x = 135,026,182,157.12
  5. Step 5: Solve for x
    x = 135,026,182,157.12/422,548.34
  6. Step 6: Final answer
    x = 319,552.04

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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.