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Finding the Fourth Proportional to 444,048.60, 666,159.30 and 128,515.80

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Solution

The fourth proportional to 444,048.60, 666,159.30 and 128,515.80 is: 192,798.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,048.60 : 666,159.30 = 128,515.80 : x
  2. Step 2: Convert to fraction form
    444,048.60/666,159.30 = 128,515.80/x
  3. Step 3: Cross multiply
    444,048.60x = 666,159.30 × 128,515.80
  4. Step 4: Simplify right side
    444,048.60x = 85,611,995,366.94
  5. Step 5: Solve for x
    x = 85,611,995,366.94/444,048.60
  6. Step 6: Final answer
    x = 192,798.71

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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.