Home / 380,811.43-525,520.07-211,045.56

Finding the Fourth Proportional to 380,811.43, 525,520.07 and 211,045.56

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Solution

The fourth proportional to 380,811.43, 525,520.07 and 211,045.56 is: 291,243.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,811.43 : 525,520.07 = 211,045.56 : x
  2. Step 2: Convert to fraction form
    380,811.43/525,520.07 = 211,045.56/x
  3. Step 3: Cross multiply
    380,811.43x = 525,520.07 × 211,045.56
  4. Step 4: Simplify right side
    380,811.43x = 110,908,677,464.39
  5. Step 5: Solve for x
    x = 110,908,677,464.39/380,811.43
  6. Step 6: Final answer
    x = 291,243.04

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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.