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Finding the Fourth Proportional to 286,955.39, 396,032.56 and 164,491.60

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Solution

The fourth proportional to 286,955.39, 396,032.56 and 164,491.60 is: 227,017.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,955.39 : 396,032.56 = 164,491.60 : x
  2. Step 2: Convert to fraction form
    286,955.39/396,032.56 = 164,491.60/x
  3. Step 3: Cross multiply
    286,955.39x = 396,032.56 × 164,491.60
  4. Step 4: Simplify right side
    286,955.39x = 65,144,028,624.04
  5. Step 5: Solve for x
    x = 65,144,028,624.04/286,955.39
  6. Step 6: Final answer
    x = 227,017.96

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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.