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Finding the Fourth Proportional to 372,006.56, 557,665.59 and 135,285.68

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Solution

The fourth proportional to 372,006.56, 557,665.59 and 135,285.68 is: 202,803.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,006.56 : 557,665.59 = 135,285.68 : x
  2. Step 2: Convert to fraction form
    372,006.56/557,665.59 = 135,285.68/x
  3. Step 3: Cross multiply
    372,006.56x = 557,665.59 × 135,285.68
  4. Step 4: Simplify right side
    372,006.56x = 75,444,168,555.75
  5. Step 5: Solve for x
    x = 75,444,168,555.75/372,006.56
  6. Step 6: Final answer
    x = 202,803.33

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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.