Home / 285,391.06-393,842.55-172,191.94

Finding the Fourth Proportional to 285,391.06, 393,842.55 and 172,191.94

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Solution

The fourth proportional to 285,391.06, 393,842.55 and 172,191.94 is: 237,626.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,391.06 : 393,842.55 = 172,191.94 : x
  2. Step 2: Convert to fraction form
    285,391.06/393,842.55 = 172,191.94/x
  3. Step 3: Cross multiply
    285,391.06x = 393,842.55 × 172,191.94
  4. Step 4: Simplify right side
    285,391.06x = 67,816,512,400.16
  5. Step 5: Solve for x
    x = 67,816,512,400.16/285,391.06
  6. Step 6: Final answer
    x = 237,626.62

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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.