Finding the Fourth Proportional to 211,935.40, 317,903.10 and 93,545.80
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Solution
The fourth proportional to 211,935.40, 317,903.10 and 93,545.80 is: 140,318.70
Step by Step Solution
- Step 1: Write the proportion equation
211,935.40 : 317,903.10 = 93,545.80 : x - Step 2: Convert to fraction form
211,935.40/317,903.10 = 93,545.80/x - Step 3: Cross multiply
211,935.40x = 317,903.10 × 93,545.80 - Step 4: Simplify right side
211,935.40x = 29,738,499,811.98 - Step 5: Solve for x
x = 29,738,499,811.98/211,935.40 - Step 6: Final answer
x = 140,318.70
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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.