Finding the Fourth Proportional to 223,980.80, 309,071.07 and 137,925.99
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Solution
The fourth proportional to 223,980.80, 309,071.07 and 137,925.99 is: 190,324.06
Step by Step Solution
- Step 1: Write the proportion equation
223,980.80 : 309,071.07 = 137,925.99 : x - Step 2: Convert to fraction form
223,980.80/309,071.07 = 137,925.99/x - Step 3: Cross multiply
223,980.80x = 309,071.07 × 137,925.99 - Step 4: Simplify right side
223,980.80x = 42,628,933,310.11 - Step 5: Solve for x
x = 42,628,933,310.11/223,980.80 - Step 6: Final answer
x = 190,324.06
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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.