Home / 285,141.08-393,467.98-170,396.88

Finding the Fourth Proportional to 285,141.08, 393,467.98 and 170,396.88

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Solution

The fourth proportional to 285,141.08, 393,467.98 and 170,396.88 is: 235,131.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,141.08 : 393,467.98 = 170,396.88 : x
  2. Step 2: Convert to fraction form
    285,141.08/393,467.98 = 170,396.88/x
  3. Step 3: Cross multiply
    285,141.08x = 393,467.98 × 170,396.88
  4. Step 4: Simplify right side
    285,141.08x = 67,045,715,319.92
  5. Step 5: Solve for x
    x = 67,045,715,319.92/285,141.08
  6. Step 6: Final answer
    x = 235,131.73

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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.