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Finding the Fourth Proportional to 444,666.60, 667,437.30 and 220,280.40

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Solution

The fourth proportional to 444,666.60, 667,437.30 and 220,280.40 is: 330,637.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,666.60 : 667,437.30 = 220,280.40 : x
  2. Step 2: Convert to fraction form
    444,666.60/667,437.30 = 220,280.40/x
  3. Step 3: Cross multiply
    444,666.60x = 667,437.30 × 220,280.40
  4. Step 4: Simplify right side
    444,666.60x = 147,023,355,418.92
  5. Step 5: Solve for x
    x = 147,023,355,418.92/444,666.60
  6. Step 6: Final answer
    x = 330,637.28

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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.