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Finding the Fourth Proportional to 286,970.64, 395,912.52 and 179,499.84

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Solution

The fourth proportional to 286,970.64, 395,912.52 and 179,499.84 is: 247,642.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,970.64 : 395,912.52 = 179,499.84 : x
  2. Step 2: Convert to fraction form
    286,970.64/395,912.52 = 179,499.84/x
  3. Step 3: Cross multiply
    286,970.64x = 395,912.52 × 179,499.84
  4. Step 4: Simplify right side
    286,970.64x = 71,066,233,994.00
  5. Step 5: Solve for x
    x = 71,066,233,994.00/286,970.64
  6. Step 6: Final answer
    x = 247,642.87

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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.