Home / 381,056.20-525,848.34-211,291.72

Finding the Fourth Proportional to 381,056.20, 525,848.34 and 211,291.72

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Solution

The fourth proportional to 381,056.20, 525,848.34 and 211,291.72 is: 291,577.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,056.20 : 525,848.34 = 211,291.72 : x
  2. Step 2: Convert to fraction form
    381,056.20/525,848.34 = 211,291.72/x
  3. Step 3: Cross multiply
    381,056.20x = 525,848.34 × 211,291.72
  4. Step 4: Simplify right side
    381,056.20x = 111,107,400,217.75
  5. Step 5: Solve for x
    x = 111,107,400,217.75/381,056.20
  6. Step 6: Final answer
    x = 291,577.46

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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.