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Finding the Fourth Proportional to 245,858.60, 368,528.70 and 140,450.60

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Solution

The fourth proportional to 245,858.60, 368,528.70 and 140,450.60 is: 210,527.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,858.60 : 368,528.70 = 140,450.60 : x
  2. Step 2: Convert to fraction form
    245,858.60/368,528.70 = 140,450.60/x
  3. Step 3: Cross multiply
    245,858.60x = 368,528.70 × 140,450.60
  4. Step 4: Simplify right side
    245,858.60x = 51,760,077,032.22
  5. Step 5: Solve for x
    x = 51,760,077,032.22/245,858.60
  6. Step 6: Final answer
    x = 210,527.83

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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.