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Finding the Fourth Proportional to 236,464.80, 354,697.20 and 206,940.30

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Solution

The fourth proportional to 236,464.80, 354,697.20 and 206,940.30 is: 310,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,464.80 : 354,697.20 = 206,940.30 : x
  2. Step 2: Convert to fraction form
    236,464.80/354,697.20 = 206,940.30/x
  3. Step 3: Cross multiply
    236,464.80x = 354,697.20 × 206,940.30
  4. Step 4: Simplify right side
    236,464.80x = 73,401,144,977.16
  5. Step 5: Solve for x
    x = 73,401,144,977.16/236,464.80
  6. Step 6: Final answer
    x = 310,410.45

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1.5x scale

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.