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Finding the Fourth Proportional to 441,342.80, 662,287.80 and 231,131.60

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Solution

The fourth proportional to 441,342.80, 662,287.80 and 231,131.60 is: 346,840.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,342.80 : 662,287.80 = 231,131.60 : x
  2. Step 2: Convert to fraction form
    441,342.80/662,287.80 = 231,131.60/x
  3. Step 3: Cross multiply
    441,342.80x = 662,287.80 × 231,131.60
  4. Step 4: Simplify right side
    441,342.80x = 153,075,638,874.48
  5. Step 5: Solve for x
    x = 153,075,638,874.48/441,342.80
  6. Step 6: Final answer
    x = 346,840.68

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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.