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Finding the Fourth Proportional to 319,170.51, 478,938.29 and 161,410.59

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Solution

The fourth proportional to 319,170.51, 478,938.29 and 161,410.59 is: 242,208.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,170.51 : 478,938.29 = 161,410.59 : x
  2. Step 2: Convert to fraction form
    319,170.51/478,938.29 = 161,410.59/x
  3. Step 3: Cross multiply
    319,170.51x = 478,938.29 × 161,410.59
  4. Step 4: Simplify right side
    319,170.51x = 77,305,711,155.44
  5. Step 5: Solve for x
    x = 77,305,711,155.44/319,170.51
  6. Step 6: Final answer
    x = 242,208.19

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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.