Finding the Fourth Proportional to 219,902.55, 303,309.12 and 201,811.74
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Solution
The fourth proportional to 219,902.55, 303,309.12 and 201,811.74 is: 278,356.67
Step by Step Solution
- Step 1: Write the proportion equation
219,902.55 : 303,309.12 = 201,811.74 : x - Step 2: Convert to fraction form
219,902.55/303,309.12 = 201,811.74/x - Step 3: Cross multiply
219,902.55x = 303,309.12 × 201,811.74 - Step 4: Simplify right side
219,902.55x = 61,211,341,265.07 - Step 5: Solve for x
x = 61,211,341,265.07/219,902.55 - Step 6: Final answer
x = 278,356.67
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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.