Home / 380,460.12-525,050.76-210,694.32

Finding the Fourth Proportional to 380,460.12, 525,050.76 and 210,694.32

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Solution

The fourth proportional to 380,460.12, 525,050.76 and 210,694.32 is: 290,766.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,460.12 : 525,050.76 = 210,694.32 : x
  2. Step 2: Convert to fraction form
    380,460.12/525,050.76 = 210,694.32/x
  3. Step 3: Cross multiply
    380,460.12x = 525,050.76 × 210,694.32
  4. Step 4: Simplify right side
    380,460.12x = 110,625,212,843.68
  5. Step 5: Solve for x
    x = 110,625,212,843.68/380,460.12
  6. Step 6: Final answer
    x = 290,766.91

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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.