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Finding the Fourth Proportional to 275,647.95, 380,435.39 and 168,280.43

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Solution

The fourth proportional to 275,647.95, 380,435.39 and 168,280.43 is: 232,252.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,647.95 : 380,435.39 = 168,280.43 : x
  2. Step 2: Convert to fraction form
    275,647.95/380,435.39 = 168,280.43/x
  3. Step 3: Cross multiply
    275,647.95x = 380,435.39 × 168,280.43
  4. Step 4: Simplify right side
    275,647.95x = 64,019,828,272.84
  5. Step 5: Solve for x
    x = 64,019,828,272.84/275,647.95
  6. Step 6: Final answer
    x = 232,252.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.