Finding the Fourth Proportional to 328,690.56, 453,486.96 and 259,560.66
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Solution
The fourth proportional to 328,690.56, 453,486.96 and 259,560.66 is: 358,109.99
Step by Step Solution
- Step 1: Write the proportion equation
328,690.56 : 453,486.96 = 259,560.66 : x - Step 2: Convert to fraction form
328,690.56/453,486.96 = 259,560.66/x - Step 3: Cross multiply
328,690.56x = 453,486.96 × 259,560.66 - Step 4: Simplify right side
328,690.56x = 117,707,374,638.99 - Step 5: Solve for x
x = 117,707,374,638.99/328,690.56 - Step 6: Final answer
x = 358,109.99
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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.