Home / 286,208.80-394,948.32-158,874.40

Finding the Fourth Proportional to 286,208.80, 394,948.32 and 158,874.40

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Solution

The fourth proportional to 286,208.80, 394,948.32 and 158,874.40 is: 219,235.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,208.80 : 394,948.32 = 158,874.40 : x
  2. Step 2: Convert to fraction form
    286,208.80/394,948.32 = 158,874.40/x
  3. Step 3: Cross multiply
    286,208.80x = 394,948.32 × 158,874.40
  4. Step 4: Simplify right side
    286,208.80x = 62,747,177,371.01
  5. Step 5: Solve for x
    x = 62,747,177,371.01/286,208.80
  6. Step 6: Final answer
    x = 219,235.67

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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.