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Finding the Fourth Proportional to 289,577.35, 399,584.49 and 168,693.35

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Solution

The fourth proportional to 289,577.35, 399,584.49 and 168,693.35 is: 232,778.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,577.35 : 399,584.49 = 168,693.35 : x
  2. Step 2: Convert to fraction form
    289,577.35/399,584.49 = 168,693.35/x
  3. Step 3: Cross multiply
    289,577.35x = 399,584.49 × 168,693.35
  4. Step 4: Simplify right side
    289,577.35x = 67,407,246,226.14
  5. Step 5: Solve for x
    x = 67,407,246,226.14/289,577.35
  6. Step 6: Final answer
    x = 232,778.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.