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Finding the Fourth Proportional to 638,174.34, 957,427.56 and 238,846.50

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Solution

The fourth proportional to 638,174.34, 957,427.56 and 238,846.50 is: 358,331.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,174.34 : 957,427.56 = 238,846.50 : x
  2. Step 2: Convert to fraction form
    638,174.34/957,427.56 = 238,846.50/x
  3. Step 3: Cross multiply
    638,174.34x = 957,427.56 × 238,846.50
  4. Step 4: Simplify right side
    638,174.34x = 228,678,221,709.54
  5. Step 5: Solve for x
    x = 228,678,221,709.54/638,174.34
  6. Step 6: Final answer
    x = 358,331.90

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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.