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Finding the Fourth Proportional to 444,240, 666,429.28 and 144,649.84

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Solution

The fourth proportional to 444,240, 666,429.28 and 144,649.84 is: 216,997.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,240 : 666,429.28 = 144,649.84 : x
  2. Step 2: Convert to fraction form
    444,240/666,429.28 = 144,649.84/x
  3. Step 3: Cross multiply
    444,240x = 666,429.28 × 144,649.84
  4. Step 4: Simplify right side
    444,240x = 96,398,888,723.32
  5. Step 5: Solve for x
    x = 96,398,888,723.32/444,240
  6. Step 6: Final answer
    x = 216,997.32

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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.