Finding the Fourth Proportional to 396,078.15, 546,588.17 and 214,790.06
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Solution
The fourth proportional to 396,078.15, 546,588.17 and 214,790.06 is: 296,410.46
Step by Step Solution
- Step 1: Write the proportion equation
396,078.15 : 546,588.17 = 214,790.06 : x - Step 2: Convert to fraction form
396,078.15/546,588.17 = 214,790.06/x - Step 3: Cross multiply
396,078.15x = 546,588.17 × 214,790.06 - Step 4: Simplify right side
396,078.15x = 117,401,706,927.57 - Step 5: Solve for x
x = 117,401,706,927.57/396,078.15 - Step 6: Final answer
x = 296,410.46
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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.