Home / 285,140.65-393,467.44-170,396.53

Finding the Fourth Proportional to 285,140.65, 393,467.44 and 170,396.53

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Solution

The fourth proportional to 285,140.65, 393,467.44 and 170,396.53 is: 235,131.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,140.65 : 393,467.44 = 170,396.53 : x
  2. Step 2: Convert to fraction form
    285,140.65/393,467.44 = 170,396.53/x
  3. Step 3: Cross multiply
    285,140.65x = 393,467.44 × 170,396.53
  4. Step 4: Simplify right side
    285,140.65x = 67,045,483,624.66
  5. Step 5: Solve for x
    x = 67,045,483,624.66/285,140.65
  6. Step 6: Final answer
    x = 235,131.27

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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.