Finding the Fourth Proportional to 221,368.33, 331,937.19 and 79,158.79
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Solution
The fourth proportional to 221,368.33, 331,937.19 and 79,158.79 is: 118,696.95
Step by Step Solution
- Step 1: Write the proportion equation
221,368.33 : 331,937.19 = 79,158.79 : x - Step 2: Convert to fraction form
221,368.33/331,937.19 = 79,158.79/x - Step 3: Cross multiply
221,368.33x = 331,937.19 × 79,158.79 - Step 4: Simplify right side
221,368.33x = 26,275,746,316.40 - Step 5: Solve for x
x = 26,275,746,316.40/221,368.33 - Step 6: Final answer
x = 118,696.95
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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.