Finding the Fourth Proportional to 258,979.74, 388,827.36 and 178,829.61
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Solution
The fourth proportional to 258,979.74, 388,827.36 and 178,829.61 is: 268,491.45
Step by Step Solution
- Step 1: Write the proportion equation
258,979.74 : 388,827.36 = 178,829.61 : x - Step 2: Convert to fraction form
258,979.74/388,827.36 = 178,829.61/x - Step 3: Cross multiply
258,979.74x = 388,827.36 × 178,829.61 - Step 4: Simplify right side
258,979.74x = 69,533,845,146.13 - Step 5: Solve for x
x = 69,533,845,146.13/258,979.74 - Step 6: Final answer
x = 268,491.45
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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.