Finding the Fourth Proportional to 180,717.21, 249,391.23 and 100,146.08
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Solution
The fourth proportional to 180,717.21, 249,391.23 and 100,146.08 is: 138,202.40
Step by Step Solution
- Step 1: Write the proportion equation
180,717.21 : 249,391.23 = 100,146.08 : x - Step 2: Convert to fraction form
180,717.21/249,391.23 = 100,146.08/x - Step 3: Cross multiply
180,717.21x = 249,391.23 × 100,146.08 - Step 4: Simplify right side
180,717.21x = 24,975,552,823.92 - Step 5: Solve for x
x = 24,975,552,823.92/180,717.21 - Step 6: Final answer
x = 138,202.40
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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.