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Finding the Fourth Proportional to 198,355.58, 273,729.71 and 107,710.74

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Solution

The fourth proportional to 198,355.58, 273,729.71 and 107,710.74 is: 148,640.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,355.58 : 273,729.71 = 107,710.74 : x
  2. Step 2: Convert to fraction form
    198,355.58/273,729.71 = 107,710.74/x
  3. Step 3: Cross multiply
    198,355.58x = 273,729.71 × 107,710.74
  4. Step 4: Simplify right side
    198,355.58x = 29,483,629,893.36
  5. Step 5: Solve for x
    x = 29,483,629,893.36/198,355.58
  6. Step 6: Final answer
    x = 148,640.28

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1.5x scale

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.