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Finding the Fourth Proportional to 366,964.80, 550,447.20 and 320,308.80

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Solution

The fourth proportional to 366,964.80, 550,447.20 and 320,308.80 is: 480,463.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,964.80 : 550,447.20 = 320,308.80 : x
  2. Step 2: Convert to fraction form
    366,964.80/550,447.20 = 320,308.80/x
  3. Step 3: Cross multiply
    366,964.80x = 550,447.20 × 320,308.80
  4. Step 4: Simplify right side
    366,964.80x = 176,313,082,095.36
  5. Step 5: Solve for x
    x = 176,313,082,095.36/366,964.80
  6. Step 6: Final answer
    x = 480,463.20

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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.