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Finding the Fourth Proportional to 290,090.43, 435,137.82 and 110,127.36

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Solution

The fourth proportional to 290,090.43, 435,137.82 and 110,127.36 is: 165,191.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,090.43 : 435,137.82 = 110,127.36 : x
  2. Step 2: Convert to fraction form
    290,090.43/435,137.82 = 110,127.36/x
  3. Step 3: Cross multiply
    290,090.43x = 435,137.82 × 110,127.36
  4. Step 4: Simplify right side
    290,090.43x = 47,920,579,352.76
  5. Step 5: Solve for x
    x = 47,920,579,352.76/290,090.43
  6. Step 6: Final answer
    x = 165,191.87

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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.