Finding the Fourth Proportional to 166,415.20, 249,622.80 and 157,229.80
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Solution
The fourth proportional to 166,415.20, 249,622.80 and 157,229.80 is: 235,844.70
Step by Step Solution
- Step 1: Write the proportion equation
166,415.20 : 249,622.80 = 157,229.80 : x - Step 2: Convert to fraction form
166,415.20/249,622.80 = 157,229.80/x - Step 3: Cross multiply
166,415.20x = 249,622.80 × 157,229.80 - Step 4: Simplify right side
166,415.20x = 39,248,142,919.44 - Step 5: Solve for x
x = 39,248,142,919.44/166,415.20 - Step 6: Final answer
x = 235,844.70
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1.5x scale
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.