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Finding the Fourth Proportional to 381,170.16, 525,926.61 and 228,150.21

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Solution

The fourth proportional to 381,170.16, 525,926.61 and 228,150.21 is: 314,794.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,170.16 : 525,926.61 = 228,150.21 : x
  2. Step 2: Convert to fraction form
    381,170.16/525,926.61 = 228,150.21/x
  3. Step 3: Cross multiply
    381,170.16x = 525,926.61 × 228,150.21
  4. Step 4: Simplify right side
    381,170.16x = 119,990,265,375.34
  5. Step 5: Solve for x
    x = 119,990,265,375.34/381,170.16
  6. Step 6: Final answer
    x = 314,794.49

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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.