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Finding the Fourth Proportional to 455,442.04, 682,415.31 and 155,759.12

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Solution

The fourth proportional to 455,442.04, 682,415.31 and 155,759.12 is: 233,382.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,442.04 : 682,415.31 = 155,759.12 : x
  2. Step 2: Convert to fraction form
    455,442.04/682,415.31 = 155,759.12/x
  3. Step 3: Cross multiply
    455,442.04x = 682,415.31 × 155,759.12
  4. Step 4: Simplify right side
    455,442.04x = 106,292,407,891.21
  5. Step 5: Solve for x
    x = 106,292,407,891.21/455,442.04
  6. Step 6: Final answer
    x = 233,382.95

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1.5x scale

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.