Home / 381,386.21-526,313.04-211,620.33

Finding the Fourth Proportional to 381,386.21, 526,313.04 and 211,620.33

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Solution

The fourth proportional to 381,386.21, 526,313.04 and 211,620.33 is: 292,036.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,386.21 : 526,313.04 = 211,620.33 : x
  2. Step 2: Convert to fraction form
    381,386.21/526,313.04 = 211,620.33/x
  3. Step 3: Cross multiply
    381,386.21x = 526,313.04 × 211,620.33
  4. Step 4: Simplify right side
    381,386.21x = 111,378,539,208.10
  5. Step 5: Solve for x
    x = 111,378,539,208.10/381,386.21
  6. Step 6: Final answer
    x = 292,036.10

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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.