Finding the Fourth Proportional to 228,601.99, 315,459.79 and 126,620.57
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Solution
The fourth proportional to 228,601.99, 315,459.79 and 126,620.57 is: 174,730.32
Step by Step Solution
- Step 1: Write the proportion equation
228,601.99 : 315,459.79 = 126,620.57 : x - Step 2: Convert to fraction form
228,601.99/315,459.79 = 126,620.57/x - Step 3: Cross multiply
228,601.99x = 315,459.79 × 126,620.57 - Step 4: Simplify right side
228,601.99x = 39,943,697,788.78 - Step 5: Solve for x
x = 39,943,697,788.78/228,601.99 - Step 6: Final answer
x = 174,730.32
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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.