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Finding the Fourth Proportional to 286,245.50, 395,050.11 and 163,749.12

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Solution

The fourth proportional to 286,245.50, 395,050.11 and 163,749.12 is: 225,991.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,245.50 : 395,050.11 = 163,749.12 : x
  2. Step 2: Convert to fraction form
    286,245.50/395,050.11 = 163,749.12/x
  3. Step 3: Cross multiply
    286,245.50x = 395,050.11 × 163,749.12
  4. Step 4: Simplify right side
    286,245.50x = 64,689,107,805.07
  5. Step 5: Solve for x
    x = 64,689,107,805.07/286,245.50
  6. Step 6: Final answer
    x = 225,991.71

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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.