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Finding the Fourth Proportional to 383,790.62, 575,681.88 and 131,068.22

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Solution

The fourth proportional to 383,790.62, 575,681.88 and 131,068.22 is: 196,600.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,790.62 : 575,681.88 = 131,068.22 : x
  2. Step 2: Convert to fraction form
    383,790.62/575,681.88 = 131,068.22/x
  3. Step 3: Cross multiply
    383,790.62x = 575,681.88 × 131,068.22
  4. Step 4: Simplify right side
    383,790.62x = 75,453,599,297.85
  5. Step 5: Solve for x
    x = 75,453,599,297.85/383,790.62
  6. Step 6: Final answer
    x = 196,600.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.