Home / 286,199.50-394,935.52-158,865.07

Finding the Fourth Proportional to 286,199.50, 394,935.52 and 158,865.07

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Solution

The fourth proportional to 286,199.50, 394,935.52 and 158,865.07 is: 219,222.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,199.50 : 394,935.52 = 158,865.07 : x
  2. Step 2: Convert to fraction form
    286,199.50/394,935.52 = 158,865.07/x
  3. Step 3: Cross multiply
    286,199.50x = 394,935.52 × 158,865.07
  4. Step 4: Simplify right side
    286,199.50x = 62,741,459,030.29
  5. Step 5: Solve for x
    x = 62,741,459,030.29/286,199.50
  6. Step 6: Final answer
    x = 219,222.81

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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.