Finding the Fourth Proportional to 357,405.12, 493,230.56 and 206,502.08
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Solution
The fourth proportional to 357,405.12, 493,230.56 and 206,502.08 is: 284,979.51
Step by Step Solution
- Step 1: Write the proportion equation
357,405.12 : 493,230.56 = 206,502.08 : x - Step 2: Convert to fraction form
357,405.12/493,230.56 = 206,502.08/x - Step 3: Cross multiply
357,405.12x = 493,230.56 × 206,502.08 - Step 4: Simplify right side
357,405.12x = 101,853,136,559.57 - Step 5: Solve for x
x = 101,853,136,559.57/357,405.12 - Step 6: Final answer
x = 284,979.51
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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.