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Finding the Fourth Proportional to 303,352.40, 455,903.40 and 264,861.20

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Solution

The fourth proportional to 303,352.40, 455,903.40 and 264,861.20 is: 398,055.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,352.40 : 455,903.40 = 264,861.20 : x
  2. Step 2: Convert to fraction form
    303,352.40/455,903.40 = 264,861.20/x
  3. Step 3: Cross multiply
    303,352.40x = 455,903.40 × 264,861.20
  4. Step 4: Simplify right side
    303,352.40x = 120,751,121,608.08
  5. Step 5: Solve for x
    x = 120,751,121,608.08/303,352.40
  6. Step 6: Final answer
    x = 398,055.60

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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.