Finding the Fourth Proportional to 403,326.80, 604,990.20 and 193,374.80
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Solution
The fourth proportional to 403,326.80, 604,990.20 and 193,374.80 is: 290,062.20
Step by Step Solution
- Step 1: Write the proportion equation
403,326.80 : 604,990.20 = 193,374.80 : x - Step 2: Convert to fraction form
403,326.80/604,990.20 = 193,374.80/x - Step 3: Cross multiply
403,326.80x = 604,990.20 × 193,374.80 - Step 4: Simplify right side
403,326.80x = 116,989,858,926.96 - Step 5: Solve for x
x = 116,989,858,926.96/403,326.80 - Step 6: Final answer
x = 290,062.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.