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Finding the Fourth Proportional to 354,537.87, 489,265.38 and 193,393.63

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Solution

The fourth proportional to 354,537.87, 489,265.38 and 193,393.63 is: 266,884.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,537.87 : 489,265.38 = 193,393.63 : x
  2. Step 2: Convert to fraction form
    354,537.87/489,265.38 = 193,393.63/x
  3. Step 3: Cross multiply
    354,537.87x = 489,265.38 × 193,393.63
  4. Step 4: Simplify right side
    354,537.87x = 94,620,807,871.53
  5. Step 5: Solve for x
    x = 94,620,807,871.53/354,537.87
  6. Step 6: Final answer
    x = 266,884.91

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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.