Finding the Fourth Proportional to 180,912.08, 249,429.26 and 129,290.88
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Solution
The fourth proportional to 180,912.08, 249,429.26 and 129,290.88 is: 178,257.46
Step by Step Solution
- Step 1: Write the proportion equation
180,912.08 : 249,429.26 = 129,290.88 : x - Step 2: Convert to fraction form
180,912.08/249,429.26 = 129,290.88/x - Step 3: Cross multiply
180,912.08x = 249,429.26 × 129,290.88 - Step 4: Simplify right side
180,912.08x = 32,248,928,523.15 - Step 5: Solve for x
x = 32,248,928,523.15/180,912.08 - Step 6: Final answer
x = 178,257.46
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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.