Home / 285,458.45-393,927.23-158,135.09

Finding the Fourth Proportional to 285,458.45, 393,927.23 and 158,135.09

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Solution

The fourth proportional to 285,458.45, 393,927.23 and 158,135.09 is: 218,223.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,458.45 : 393,927.23 = 158,135.09 : x
  2. Step 2: Convert to fraction form
    285,458.45/393,927.23 = 158,135.09/x
  3. Step 3: Cross multiply
    285,458.45x = 393,927.23 × 158,135.09
  4. Step 4: Simplify right side
    285,458.45x = 62,293,716,395.20
  5. Step 5: Solve for x
    x = 62,293,716,395.20/285,458.45
  6. Step 6: Final answer
    x = 218,223.41

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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.