Finding the Fourth Proportional to 221,098.01, 331,664.32 and 78,973.99
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Solution
The fourth proportional to 221,098.01, 331,664.32 and 78,973.99 is: 118,467.17
Step by Step Solution
- Step 1: Write the proportion equation
221,098.01 : 331,664.32 = 78,973.99 : x - Step 2: Convert to fraction form
221,098.01/331,664.32 = 78,973.99/x - Step 3: Cross multiply
221,098.01x = 331,664.32 × 78,973.99 - Step 4: Simplify right side
221,098.01x = 26,192,853,960.59 - Step 5: Solve for x
x = 26,192,853,960.59/221,098.01 - Step 6: Final answer
x = 118,467.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.