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Finding the Fourth Proportional to 268,039.95, 369,878.31 and 147,180.39

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Solution

The fourth proportional to 268,039.95, 369,878.31 and 147,180.39 is: 203,099.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,039.95 : 369,878.31 = 147,180.39 : x
  2. Step 2: Convert to fraction form
    268,039.95/369,878.31 = 147,180.39/x
  3. Step 3: Cross multiply
    268,039.95x = 369,878.31 × 147,180.39
  4. Step 4: Simplify right side
    268,039.95x = 54,438,833,918.34
  5. Step 5: Solve for x
    x = 54,438,833,918.34/268,039.95
  6. Step 6: Final answer
    x = 203,099.70

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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.