Finding the Fourth Proportional to 166,425.80, 249,638.70 and 113,281.70
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Solution
The fourth proportional to 166,425.80, 249,638.70 and 113,281.70 is: 169,922.55
Step by Step Solution
- Step 1: Write the proportion equation
166,425.80 : 249,638.70 = 113,281.70 : x - Step 2: Convert to fraction form
166,425.80/249,638.70 = 113,281.70/x - Step 3: Cross multiply
166,425.80x = 249,638.70 × 113,281.70 - Step 4: Simplify right side
166,425.80x = 28,279,496,321.79 - Step 5: Solve for x
x = 28,279,496,321.79/166,425.80 - Step 6: Final answer
x = 169,922.55
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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.