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Finding the Fourth Proportional to 264,629.60, 396,944.40 and 260,021.60

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Solution

The fourth proportional to 264,629.60, 396,944.40 and 260,021.60 is: 390,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,629.60 : 396,944.40 = 260,021.60 : x
  2. Step 2: Convert to fraction form
    264,629.60/396,944.40 = 260,021.60/x
  3. Step 3: Cross multiply
    264,629.60x = 396,944.40 × 260,021.60
  4. Step 4: Simplify right side
    264,629.60x = 103,214,117,999.04
  5. Step 5: Solve for x
    x = 103,214,117,999.04/264,629.60
  6. Step 6: Final answer
    x = 390,032.40

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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.