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Finding the Fourth Proportional to 371,606.91, 557,431.56 and 105,346.50

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Solution

The fourth proportional to 371,606.91, 557,431.56 and 105,346.50 is: 158,025.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,606.91 : 557,431.56 = 105,346.50 : x
  2. Step 2: Convert to fraction form
    371,606.91/557,431.56 = 105,346.50/x
  3. Step 3: Cross multiply
    371,606.91x = 557,431.56 × 105,346.50
  4. Step 4: Simplify right side
    371,606.91x = 58,723,463,835.54
  5. Step 5: Solve for x
    x = 58,723,463,835.54/371,606.91
  6. Step 6: Final answer
    x = 158,025.76

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.