Finding the Fourth Proportional to 368,998.96, 509,218.57 and 207,854.01
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Solution
The fourth proportional to 368,998.96, 509,218.57 and 207,854.01 is: 286,838.53
Step by Step Solution
- Step 1: Write the proportion equation
368,998.96 : 509,218.57 = 207,854.01 : x - Step 2: Convert to fraction form
368,998.96/509,218.57 = 207,854.01/x - Step 3: Cross multiply
368,998.96x = 509,218.57 × 207,854.01 - Step 4: Simplify right side
368,998.96x = 105,843,120,701.70 - Step 5: Solve for x
x = 105,843,120,701.70/368,998.96 - Step 6: Final answer
x = 286,838.53
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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.