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Finding the Fourth Proportional to 228,577.65, 315,440.50 and 131,779.85

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Solution

The fourth proportional to 228,577.65, 315,440.50 and 131,779.85 is: 181,858.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,577.65 : 315,440.50 = 131,779.85 : x
  2. Step 2: Convert to fraction form
    228,577.65/315,440.50 = 131,779.85/x
  3. Step 3: Cross multiply
    228,577.65x = 315,440.50 × 131,779.85
  4. Step 4: Simplify right side
    228,577.65x = 41,568,699,867.27
  5. Step 5: Solve for x
    x = 41,568,699,867.27/228,577.65
  6. Step 6: Final answer
    x = 181,858.11

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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.