Home / 285,352.21-393,790.13-164,491.30

Finding the Fourth Proportional to 285,352.21, 393,790.13 and 164,491.30

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Solution

The fourth proportional to 285,352.21, 393,790.13 and 164,491.30 is: 227,000.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,352.21 : 393,790.13 = 164,491.30 : x
  2. Step 2: Convert to fraction form
    285,352.21/393,790.13 = 164,491.30/x
  3. Step 3: Cross multiply
    285,352.21x = 393,790.13 × 164,491.30
  4. Step 4: Simplify right side
    285,352.21x = 64,775,049,837.62
  5. Step 5: Solve for x
    x = 64,775,049,837.62/285,352.21
  6. Step 6: Final answer
    x = 227,000.35

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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.