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Finding the Fourth Proportional to 483,150, 724,762.96 and 128,164.08

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Solution

The fourth proportional to 483,150, 724,762.96 and 128,164.08 is: 192,256.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,150 : 724,762.96 = 128,164.08 : x
  2. Step 2: Convert to fraction form
    483,150/724,762.96 = 128,164.08/x
  3. Step 3: Cross multiply
    483,150x = 724,762.96 × 128,164.08
  4. Step 4: Simplify right side
    483,150x = 92,888,577,986.48
  5. Step 5: Solve for x
    x = 92,888,577,986.48/483,150
  6. Step 6: Final answer
    x = 192,256.19

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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.