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Finding the Fourth Proportional to 321,870.81, 444,161.02 and 201,004.84

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Solution

The fourth proportional to 321,870.81, 444,161.02 and 201,004.84 is: 277,373.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,870.81 : 444,161.02 = 201,004.84 : x
  2. Step 2: Convert to fraction form
    321,870.81/444,161.02 = 201,004.84/x
  3. Step 3: Cross multiply
    321,870.81x = 444,161.02 × 201,004.84
  4. Step 4: Simplify right side
    321,870.81x = 89,278,511,533.51
  5. Step 5: Solve for x
    x = 89,278,511,533.51/321,870.81
  6. Step 6: Final answer
    x = 277,373.74

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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.