Home / 286,771.36-395,734.14-157,708.72

Finding the Fourth Proportional to 286,771.36, 395,734.14 and 157,708.72

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Solution

The fourth proportional to 286,771.36, 395,734.14 and 157,708.72 is: 217,632.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,771.36 : 395,734.14 = 157,708.72 : x
  2. Step 2: Convert to fraction form
    286,771.36/395,734.14 = 157,708.72/x
  3. Step 3: Cross multiply
    286,771.36x = 395,734.14 × 157,708.72
  4. Step 4: Simplify right side
    286,771.36x = 62,410,724,679.70
  5. Step 5: Solve for x
    x = 62,410,724,679.70/286,771.36
  6. Step 6: Final answer
    x = 217,632.35

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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.