Home / 286,135.08-394,852.32-157,070.40

Finding the Fourth Proportional to 286,135.08, 394,852.32 and 157,070.40

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Solution

The fourth proportional to 286,135.08, 394,852.32 and 157,070.40 is: 216,749.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,135.08 : 394,852.32 = 157,070.40 : x
  2. Step 2: Convert to fraction form
    286,135.08/394,852.32 = 157,070.40/x
  3. Step 3: Cross multiply
    286,135.08x = 394,852.32 × 157,070.40
  4. Step 4: Simplify right side
    286,135.08x = 62,019,611,843.33
  5. Step 5: Solve for x
    x = 62,019,611,843.33/286,135.08
  6. Step 6: Final answer
    x = 216,749.42

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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.