Finding the Fourth Proportional to 258,887.06, 388,374.87 and 118,657.70
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Solution
The fourth proportional to 258,887.06, 388,374.87 and 118,657.70 is: 178,006.85
Step by Step Solution
- Step 1: Write the proportion equation
258,887.06 : 388,374.87 = 118,657.70 : x - Step 2: Convert to fraction form
258,887.06/388,374.87 = 118,657.70/x - Step 3: Cross multiply
258,887.06x = 388,374.87 × 118,657.70 - Step 4: Simplify right side
258,887.06x = 46,083,668,812.00 - Step 5: Solve for x
x = 46,083,668,812.00/258,887.06 - Step 6: Final answer
x = 178,006.85
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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.