Finding the Fourth Proportional to 180,794.34, 249,492.20 and 100,221.17
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Solution
The fourth proportional to 180,794.34, 249,492.20 and 100,221.17 is: 138,302.99
Step by Step Solution
- Step 1: Write the proportion equation
180,794.34 : 249,492.20 = 100,221.17 : x - Step 2: Convert to fraction form
180,794.34/249,492.20 = 100,221.17/x - Step 3: Cross multiply
180,794.34x = 249,492.20 × 100,221.17 - Step 4: Simplify right side
180,794.34x = 25,004,398,441.31 - Step 5: Solve for x
x = 25,004,398,441.31/180,794.34 - Step 6: Final answer
x = 138,302.99
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1.5x scale
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.