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Finding the Fourth Proportional to 202,379.08, 279,281.82 and 111,740.68

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Solution

The fourth proportional to 202,379.08, 279,281.82 and 111,740.68 is: 154,201.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,379.08 : 279,281.82 = 111,740.68 : x
  2. Step 2: Convert to fraction form
    202,379.08/279,281.82 = 111,740.68/x
  3. Step 3: Cross multiply
    202,379.08x = 279,281.82 × 111,740.68
  4. Step 4: Simplify right side
    202,379.08x = 31,207,140,478.44
  5. Step 5: Solve for x
    x = 31,207,140,478.44/202,379.08
  6. Step 6: Final answer
    x = 154,201.41

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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.