Finding the Fourth Proportional to 368,998.22, 509,149.89 and 207,818.75
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Solution
The fourth proportional to 368,998.22, 509,149.89 and 207,818.75 is: 286,751.77
Step by Step Solution
- Step 1: Write the proportion equation
368,998.22 : 509,149.89 = 207,818.75 : x - Step 2: Convert to fraction form
368,998.22/509,149.89 = 207,818.75/x - Step 3: Cross multiply
368,998.22x = 509,149.89 × 207,818.75 - Step 4: Simplify right side
368,998.22x = 105,810,893,702.44 - Step 5: Solve for x
x = 105,810,893,702.44/368,998.22 - Step 6: Final answer
x = 286,751.77
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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.