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Finding the Fourth Proportional to 371,602, 557,430.81 and 105,383.96

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Solution

The fourth proportional to 371,602, 557,430.81 and 105,383.96 is: 158,083.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,602 : 557,430.81 = 105,383.96 : x
  2. Step 2: Convert to fraction form
    371,602/557,430.81 = 105,383.96/x
  3. Step 3: Cross multiply
    371,602x = 557,430.81 × 105,383.96
  4. Step 4: Simplify right side
    371,602x = 58,744,266,183.81
  5. Step 5: Solve for x
    x = 58,744,266,183.81/371,602
  6. Step 6: Final answer
    x = 158,083.83

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Why These Related Problems?

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