Home / 380,188.08-524,653.20-210,418.56

Finding the Fourth Proportional to 380,188.08, 524,653.20 and 210,418.56

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Solution

The fourth proportional to 380,188.08, 524,653.20 and 210,418.56 is: 290,374.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,188.08 : 524,653.20 = 210,418.56 : x
  2. Step 2: Convert to fraction form
    380,188.08/524,653.20 = 210,418.56/x
  3. Step 3: Cross multiply
    380,188.08x = 524,653.20 × 210,418.56
  4. Step 4: Simplify right side
    380,188.08x = 110,396,770,843.39
  5. Step 5: Solve for x
    x = 110,396,770,843.39/380,188.08
  6. Step 6: Final answer
    x = 290,374.10

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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.