Finding the Fourth Proportional to 207,684.71, 312,177.35 and 137,061.20
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Solution
The fourth proportional to 207,684.71, 312,177.35 and 137,061.20 is: 206,020.95
Step by Step Solution
- Step 1: Write the proportion equation
207,684.71 : 312,177.35 = 137,061.20 : x - Step 2: Convert to fraction form
207,684.71/312,177.35 = 137,061.20/x - Step 3: Cross multiply
207,684.71x = 312,177.35 × 137,061.20 - Step 4: Simplify right side
207,684.71x = 42,787,400,985.59 - Step 5: Solve for x
x = 42,787,400,985.59/207,684.71 - Step 6: Final answer
x = 206,020.95
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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.