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Finding the Fourth Proportional to 315,164.67, 434,933.42 and 171,930.03

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Solution

The fourth proportional to 315,164.67, 434,933.42 and 171,930.03 is: 237,266.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,164.67 : 434,933.42 = 171,930.03 : x
  2. Step 2: Convert to fraction form
    315,164.67/434,933.42 = 171,930.03/x
  3. Step 3: Cross multiply
    315,164.67x = 434,933.42 × 171,930.03
  4. Step 4: Simplify right side
    315,164.67x = 74,778,115,088.95
  5. Step 5: Solve for x
    x = 74,778,115,088.95/315,164.67
  6. Step 6: Final answer
    x = 237,266.81

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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.