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Finding the Fourth Proportional to 445,493.40, 668,240.10 and 164,974.20

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Solution

The fourth proportional to 445,493.40, 668,240.10 and 164,974.20 is: 247,461.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,493.40 : 668,240.10 = 164,974.20 : x
  2. Step 2: Convert to fraction form
    445,493.40/668,240.10 = 164,974.20/x
  3. Step 3: Cross multiply
    445,493.40x = 668,240.10 × 164,974.20
  4. Step 4: Simplify right side
    445,493.40x = 110,242,375,905.42
  5. Step 5: Solve for x
    x = 110,242,375,905.42/445,493.40
  6. Step 6: Final answer
    x = 247,461.30

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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.