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Finding the Fourth Proportional to 287,505.88, 429,237.29 and 219,682.96

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Solution

The fourth proportional to 287,505.88, 429,237.29 and 219,682.96 is: 327,979.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,505.88 : 429,237.29 = 219,682.96 : x
  2. Step 2: Convert to fraction form
    287,505.88/429,237.29 = 219,682.96/x
  3. Step 3: Cross multiply
    287,505.88x = 429,237.29 × 219,682.96
  4. Step 4: Simplify right side
    287,505.88x = 94,296,118,409.58
  5. Step 5: Solve for x
    x = 94,296,118,409.58/287,505.88
  6. Step 6: Final answer
    x = 327,979.79

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.