Home / 298,715.03-412,379.10-202,427.57

Finding the Fourth Proportional to 298,715.03, 412,379.10 and 202,427.57

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Solution

The fourth proportional to 298,715.03, 412,379.10 and 202,427.57 is: 279,453.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,715.03 : 412,379.10 = 202,427.57 : x
  2. Step 2: Convert to fraction form
    298,715.03/412,379.10 = 202,427.57/x
  3. Step 3: Cross multiply
    298,715.03x = 412,379.10 × 202,427.57
  4. Step 4: Simplify right side
    298,715.03x = 83,476,899,403.63
  5. Step 5: Solve for x
    x = 83,476,899,403.63/298,715.03
  6. Step 6: Final answer
    x = 279,453.29

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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.