Finding the Fourth Proportional to 282,821.93, 390,301.96 and 153,769.09
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Solution
The fourth proportional to 282,821.93, 390,301.96 and 153,769.09 is: 212,205.52
Step by Step Solution
- Step 1: Write the proportion equation
282,821.93 : 390,301.96 = 153,769.09 : x - Step 2: Convert to fraction form
282,821.93/390,301.96 = 153,769.09/x - Step 3: Cross multiply
282,821.93x = 390,301.96 × 153,769.09 - Step 4: Simplify right side
282,821.93x = 60,016,374,494.06 - Step 5: Solve for x
x = 60,016,374,494.06/282,821.93 - Step 6: Final answer
x = 212,205.52
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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.