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Finding the Fourth Proportional to 297,332.20, 446,066.40 and 128,880.80

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Solution

The fourth proportional to 297,332.20, 446,066.40 and 128,880.80 is: 193,350.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,332.20 : 446,066.40 = 128,880.80 : x
  2. Step 2: Convert to fraction form
    297,332.20/446,066.40 = 128,880.80/x
  3. Step 3: Cross multiply
    297,332.20x = 446,066.40 × 128,880.80
  4. Step 4: Simplify right side
    297,332.20x = 57,489,394,485.12
  5. Step 5: Solve for x
    x = 57,489,394,485.12/297,332.20
  6. Step 6: Final answer
    x = 193,350.72

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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.