Finding the Fourth Proportional to 490,612.13, 736,203.72 and 206,282.08
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Solution
The fourth proportional to 490,612.13, 736,203.72 and 206,282.08 is: 309,543.17
Step by Step Solution
- Step 1: Write the proportion equation
490,612.13 : 736,203.72 = 206,282.08 : x - Step 2: Convert to fraction form
490,612.13/736,203.72 = 206,282.08/x - Step 3: Cross multiply
490,612.13x = 736,203.72 × 206,282.08 - Step 4: Simplify right side
490,612.13x = 151,865,634,665.34 - Step 5: Solve for x
x = 151,865,634,665.34/490,612.13 - Step 6: Final answer
x = 309,543.17
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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.