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Finding the Fourth Proportional to 444,239, 666,427.78 and 144,648.84

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Solution

The fourth proportional to 444,239, 666,427.78 and 144,648.84 is: 216,995.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,239 : 666,427.78 = 144,648.84 : x
  2. Step 2: Convert to fraction form
    444,239/666,427.78 = 144,648.84/x
  3. Step 3: Cross multiply
    444,239x = 666,427.78 × 144,648.84
  4. Step 4: Simplify right side
    444,239x = 96,398,005,320.78
  5. Step 5: Solve for x
    x = 96,398,005,320.78/444,239
  6. Step 6: Final answer
    x = 216,995.82

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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.