Finding the Fourth Proportional to 222,312.19, 306,762.25 and 126,813.19
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Solution
The fourth proportional to 222,312.19, 306,762.25 and 126,813.19 is: 174,985.90
Step by Step Solution
- Step 1: Write the proportion equation
222,312.19 : 306,762.25 = 126,813.19 : x - Step 2: Convert to fraction form
222,312.19/306,762.25 = 126,813.19/x - Step 3: Cross multiply
222,312.19x = 306,762.25 × 126,813.19 - Step 4: Simplify right side
222,312.19x = 38,901,499,494.08 - Step 5: Solve for x
x = 38,901,499,494.08/222,312.19 - Step 6: Final answer
x = 174,985.90
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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.