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Finding the Fourth Proportional to 536,645.90, 804,996.41 and 137,290.12

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Solution

The fourth proportional to 536,645.90, 804,996.41 and 137,290.12 is: 205,942.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,645.90 : 804,996.41 = 137,290.12 : x
  2. Step 2: Convert to fraction form
    536,645.90/804,996.41 = 137,290.12/x
  3. Step 3: Cross multiply
    536,645.90x = 804,996.41 × 137,290.12
  4. Step 4: Simplify right side
    536,645.90x = 110,518,053,728.47
  5. Step 5: Solve for x
    x = 110,518,053,728.47/536,645.90
  6. Step 6: Final answer
    x = 205,942.23

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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.