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Finding the Fourth Proportional to 379,202.72, 568,888.82 and 142,547.45

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Solution

The fourth proportional to 379,202.72, 568,888.82 and 142,547.45 is: 213,853.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,202.72 : 568,888.82 = 142,547.45 : x
  2. Step 2: Convert to fraction form
    379,202.72/568,888.82 = 142,547.45/x
  3. Step 3: Cross multiply
    379,202.72x = 568,888.82 × 142,547.45
  4. Step 4: Simplify right side
    379,202.72x = 81,093,647,601.88
  5. Step 5: Solve for x
    x = 81,093,647,601.88/379,202.72
  6. Step 6: Final answer
    x = 213,853.02

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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.