Home / 286,867.86-395,961.02-191,374.32

Finding the Fourth Proportional to 286,867.86, 395,961.02 and 191,374.32

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Solution

The fourth proportional to 286,867.86, 395,961.02 and 191,374.32 is: 264,152.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,867.86 : 395,961.02 = 191,374.32 : x
  2. Step 2: Convert to fraction form
    286,867.86/395,961.02 = 191,374.32/x
  3. Step 3: Cross multiply
    286,867.86x = 395,961.02 × 191,374.32
  4. Step 4: Simplify right side
    286,867.86x = 75,776,770,949.01
  5. Step 5: Solve for x
    x = 75,776,770,949.01/286,867.86
  6. Step 6: Final answer
    x = 264,152.18

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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.