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Finding the Fourth Proportional to 303,342, 418,611.96 and 169,206

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Solution

The fourth proportional to 303,342, 418,611.96 and 169,206 is: 233,504.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,342 : 418,611.96 = 169,206 : x
  2. Step 2: Convert to fraction form
    303,342/418,611.96 = 169,206/x
  3. Step 3: Cross multiply
    303,342x = 418,611.96 × 169,206
  4. Step 4: Simplify right side
    303,342x = 70,831,655,303.76
  5. Step 5: Solve for x
    x = 70,831,655,303.76/303,342
  6. Step 6: Final answer
    x = 233,504.28

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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.