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Finding the Fourth Proportional to 536,647.90, 804,999.41 and 137,292.12

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Solution

The fourth proportional to 536,647.90, 804,999.41 and 137,292.12 is: 205,945.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,647.90 : 804,999.41 = 137,292.12 : x
  2. Step 2: Convert to fraction form
    536,647.90/804,999.41 = 137,292.12/x
  3. Step 3: Cross multiply
    536,647.90x = 804,999.41 × 137,292.12
  4. Step 4: Simplify right side
    536,647.90x = 110,520,075,597.65
  5. Step 5: Solve for x
    x = 110,520,075,597.65/536,647.90
  6. Step 6: Final answer
    x = 205,945.23

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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.