Home / 285,415.40-393,872.28-164,556.02

Finding the Fourth Proportional to 285,415.40, 393,872.28 and 164,556.02

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Solution

The fourth proportional to 285,415.40, 393,872.28 and 164,556.02 is: 227,086.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,415.40 : 393,872.28 = 164,556.02 : x
  2. Step 2: Convert to fraction form
    285,415.40/393,872.28 = 164,556.02/x
  3. Step 3: Cross multiply
    285,415.40x = 393,872.28 × 164,556.02
  4. Step 4: Simplify right side
    285,415.40x = 64,814,054,785.13
  5. Step 5: Solve for x
    x = 64,814,054,785.13/285,415.40
  6. Step 6: Final answer
    x = 227,086.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.