Finding the Fourth Proportional to 282,188.58, 389,424.99 and 154,876.02
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Solution
The fourth proportional to 282,188.58, 389,424.99 and 154,876.02 is: 213,731.51
Step by Step Solution
- Step 1: Write the proportion equation
282,188.58 : 389,424.99 = 154,876.02 : x - Step 2: Convert to fraction form
282,188.58/389,424.99 = 154,876.02/x - Step 3: Cross multiply
282,188.58x = 389,424.99 × 154,876.02 - Step 4: Simplify right side
282,188.58x = 60,312,592,539.74 - Step 5: Solve for x
x = 60,312,592,539.74/282,188.58 - Step 6: Final answer
x = 213,731.51
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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.