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Finding the Fourth Proportional to 444,977.60, 667,466.40 and 256,020.80

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Solution

The fourth proportional to 444,977.60, 667,466.40 and 256,020.80 is: 384,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,977.60 : 667,466.40 = 256,020.80 : x
  2. Step 2: Convert to fraction form
    444,977.60/667,466.40 = 256,020.80/x
  3. Step 3: Cross multiply
    444,977.60x = 667,466.40 × 256,020.80
  4. Step 4: Simplify right side
    444,977.60x = 170,885,281,701.12
  5. Step 5: Solve for x
    x = 170,885,281,701.12/444,977.60
  6. Step 6: Final answer
    x = 384,031.20

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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.