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Finding the Fourth Proportional to 406,126.56, 608,736.72 and 169,390.56

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Solution

The fourth proportional to 406,126.56, 608,736.72 and 169,390.56 is: 253,896.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,126.56 : 608,736.72 = 169,390.56 : x
  2. Step 2: Convert to fraction form
    406,126.56/608,736.72 = 169,390.56/x
  3. Step 3: Cross multiply
    406,126.56x = 608,736.72 × 169,390.56
  4. Step 4: Simplify right side
    406,126.56x = 103,114,253,893.36
  5. Step 5: Solve for x
    x = 103,114,253,893.36/406,126.56
  6. Step 6: Final answer
    x = 253,896.85

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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.