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Finding the Fourth Proportional to 297,325.20, 446,055.90 and 128,873.80

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Solution

The fourth proportional to 297,325.20, 446,055.90 and 128,873.80 is: 193,340.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,325.20 : 446,055.90 = 128,873.80 : x
  2. Step 2: Convert to fraction form
    297,325.20/446,055.90 = 128,873.80/x
  3. Step 3: Cross multiply
    297,325.20x = 446,055.90 × 128,873.80
  4. Step 4: Simplify right side
    297,325.20x = 57,484,918,845.42
  5. Step 5: Solve for x
    x = 57,484,918,845.42/297,325.20
  6. Step 6: Final answer
    x = 193,340.22

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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.