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Finding the Fourth Proportional to 379,358.16, 568,599.48 and 142,549.44

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Solution

The fourth proportional to 379,358.16, 568,599.48 and 142,549.44 is: 213,659.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,358.16 : 568,599.48 = 142,549.44 : x
  2. Step 2: Convert to fraction form
    379,358.16/568,599.48 = 142,549.44/x
  3. Step 3: Cross multiply
    379,358.16x = 568,599.48 × 142,549.44
  4. Step 4: Simplify right side
    379,358.16x = 81,053,537,458.29
  5. Step 5: Solve for x
    x = 81,053,537,458.29/379,358.16
  6. Step 6: Final answer
    x = 213,659.67

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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.