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Finding the Fourth Proportional to 435,415.82, 653,372.46 and 169,141.68

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Solution

The fourth proportional to 435,415.82, 653,372.46 and 169,141.68 is: 253,809.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,415.82 : 653,372.46 = 169,141.68 : x
  2. Step 2: Convert to fraction form
    435,415.82/653,372.46 = 169,141.68/x
  3. Step 3: Cross multiply
    435,415.82x = 653,372.46 × 169,141.68
  4. Step 4: Simplify right side
    435,415.82x = 110,512,515,550.13
  5. Step 5: Solve for x
    x = 110,512,515,550.13/435,415.82
  6. Step 6: Final answer
    x = 253,809.14

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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.