Home / 380,140.12-524,590.32-210,383.56

Finding the Fourth Proportional to 380,140.12, 524,590.32 and 210,383.56

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Solution

The fourth proportional to 380,140.12, 524,590.32 and 210,383.56 is: 290,327.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,140.12 : 524,590.32 = 210,383.56 : x
  2. Step 2: Convert to fraction form
    380,140.12/524,590.32 = 210,383.56/x
  3. Step 3: Cross multiply
    380,140.12x = 524,590.32 × 210,383.56
  4. Step 4: Simplify right side
    380,140.12x = 110,365,179,063.14
  5. Step 5: Solve for x
    x = 110,365,179,063.14/380,140.12
  6. Step 6: Final answer
    x = 290,327.63

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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.