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Finding the Fourth Proportional to 286,586.74, 395,458.30 and 165,709.73

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Solution

The fourth proportional to 286,586.74, 395,458.30 and 165,709.73 is: 228,661.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,586.74 : 395,458.30 = 165,709.73 : x
  2. Step 2: Convert to fraction form
    286,586.74/395,458.30 = 165,709.73/x
  3. Step 3: Cross multiply
    286,586.74x = 395,458.30 × 165,709.73
  4. Step 4: Simplify right side
    286,586.74x = 65,531,289,315.04
  5. Step 5: Solve for x
    x = 65,531,289,315.04/286,586.74
  6. Step 6: Final answer
    x = 228,661.27

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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.