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Finding the Fourth Proportional to 273,485.60, 410,228.40 and 223,719.20

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Solution

The fourth proportional to 273,485.60, 410,228.40 and 223,719.20 is: 335,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,485.60 : 410,228.40 = 223,719.20 : x
  2. Step 2: Convert to fraction form
    273,485.60/410,228.40 = 223,719.20/x
  3. Step 3: Cross multiply
    273,485.60x = 410,228.40 × 223,719.20
  4. Step 4: Simplify right side
    273,485.60x = 91,775,969,465.28
  5. Step 5: Solve for x
    x = 91,775,969,465.28/273,485.60
  6. Step 6: Final answer
    x = 335,578.80

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Why These Related Problems?

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