Finding the Fourth Proportional to 366,121.20, 549,181.80 and 208,657.20
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Solution
The fourth proportional to 366,121.20, 549,181.80 and 208,657.20 is: 312,985.80
Step by Step Solution
- Step 1: Write the proportion equation
366,121.20 : 549,181.80 = 208,657.20 : x - Step 2: Convert to fraction form
366,121.20/549,181.80 = 208,657.20/x - Step 3: Cross multiply
366,121.20x = 549,181.80 × 208,657.20 - Step 4: Simplify right side
366,121.20x = 114,590,736,678.96 - Step 5: Solve for x
x = 114,590,736,678.96/366,121.20 - Step 6: Final answer
x = 312,985.80
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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.