Finding the Fourth Proportional to 402,969.32, 556,119.80 and 233,258.12
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Solution
The fourth proportional to 402,969.32, 556,119.80 and 233,258.12 is: 321,909.02
Step by Step Solution
- Step 1: Write the proportion equation
402,969.32 : 556,119.80 = 233,258.12 : x - Step 2: Convert to fraction form
402,969.32/556,119.80 = 233,258.12/x - Step 3: Cross multiply
402,969.32x = 556,119.80 × 233,258.12 - Step 4: Simplify right side
402,969.32x = 129,719,459,042.78 - Step 5: Solve for x
x = 129,719,459,042.78/402,969.32 - Step 6: Final answer
x = 321,909.02
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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.