Home / 285,536.48-394,043.04-158,213.76

Finding the Fourth Proportional to 285,536.48, 394,043.04 and 158,213.76

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Solution

The fourth proportional to 285,536.48, 394,043.04 and 158,213.76 is: 218,336.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,536.48 : 394,043.04 = 158,213.76 : x
  2. Step 2: Convert to fraction form
    285,536.48/394,043.04 = 158,213.76/x
  3. Step 3: Cross multiply
    285,536.48x = 394,043.04 × 158,213.76
  4. Step 4: Simplify right side
    285,536.48x = 62,343,030,960.23
  5. Step 5: Solve for x
    x = 62,343,030,960.23/285,536.48
  6. Step 6: Final answer
    x = 218,336.48

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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.