Finding the Fourth Proportional to 282,821.24, 390,283.26 and 155,495.84
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Solution
The fourth proportional to 282,821.24, 390,283.26 and 155,495.84 is: 214,578.73
Step by Step Solution
- Step 1: Write the proportion equation
282,821.24 : 390,283.26 = 155,495.84 : x - Step 2: Convert to fraction form
282,821.24/390,283.26 = 155,495.84/x - Step 3: Cross multiply
282,821.24x = 390,283.26 × 155,495.84 - Step 4: Simplify right side
282,821.24x = 60,687,421,400.22 - Step 5: Solve for x
x = 60,687,421,400.22/282,821.24 - Step 6: Final answer
x = 214,578.73
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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.