Finding the Fourth Proportional to 155,948.05, 215,208.32 and 84,328.07
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Solution
The fourth proportional to 155,948.05, 215,208.32 and 84,328.07 is: 116,372.74
Step by Step Solution
- Step 1: Write the proportion equation
155,948.05 : 215,208.32 = 84,328.07 : x - Step 2: Convert to fraction form
155,948.05/215,208.32 = 84,328.07/x - Step 3: Cross multiply
155,948.05x = 215,208.32 × 84,328.07 - Step 4: Simplify right side
155,948.05x = 18,148,102,450.56 - Step 5: Solve for x
x = 18,148,102,450.56/155,948.05 - Step 6: Final answer
x = 116,372.74
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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.