Home / 312,351.44-431,044.36-169,111.60

Finding the Fourth Proportional to 312,351.44, 431,044.36 and 169,111.60

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Solution

The fourth proportional to 312,351.44, 431,044.36 and 169,111.60 is: 233,373.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,351.44 : 431,044.36 = 169,111.60 : x
  2. Step 2: Convert to fraction form
    312,351.44/431,044.36 = 169,111.60/x
  3. Step 3: Cross multiply
    312,351.44x = 431,044.36 × 169,111.60
  4. Step 4: Simplify right side
    312,351.44x = 72,894,601,390.58
  5. Step 5: Solve for x
    x = 72,894,601,390.58/312,351.44
  6. Step 6: Final answer
    x = 233,373.67

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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.