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Finding the Fourth Proportional to 175,262.60, 262,893.90 and 128,606.60

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Solution

The fourth proportional to 175,262.60, 262,893.90 and 128,606.60 is: 192,909.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,262.60 : 262,893.90 = 128,606.60 : x
  2. Step 2: Convert to fraction form
    175,262.60/262,893.90 = 128,606.60/x
  3. Step 3: Cross multiply
    175,262.60x = 262,893.90 × 128,606.60
  4. Step 4: Simplify right side
    175,262.60x = 33,809,890,639.74
  5. Step 5: Solve for x
    x = 33,809,890,639.74/175,262.60
  6. Step 6: Final answer
    x = 192,909.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.