Finding the Fourth Proportional to 245,816.18, 339,258.66 and 138,407.14
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Solution
The fourth proportional to 245,816.18, 339,258.66 and 138,407.14 is: 191,020.06
Step by Step Solution
- Step 1: Write the proportion equation
245,816.18 : 339,258.66 = 138,407.14 : x - Step 2: Convert to fraction form
245,816.18/339,258.66 = 138,407.14/x - Step 3: Cross multiply
245,816.18x = 339,258.66 × 138,407.14 - Step 4: Simplify right side
245,816.18x = 46,955,821,719.55 - Step 5: Solve for x
x = 46,955,821,719.55/245,816.18 - Step 6: Final answer
x = 191,020.06
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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.