Finding the Fourth Proportional to 408,279.56, 612,543.84 and 208,740.06
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Solution
The fourth proportional to 408,279.56, 612,543.84 and 208,740.06 is: 313,173.74
Step by Step Solution
- Step 1: Write the proportion equation
408,279.56 : 612,543.84 = 208,740.06 : x - Step 2: Convert to fraction form
408,279.56/612,543.84 = 208,740.06/x - Step 3: Cross multiply
408,279.56x = 612,543.84 × 208,740.06 - Step 4: Simplify right side
408,279.56x = 127,862,437,914.23 - Step 5: Solve for x
x = 127,862,437,914.23/408,279.56 - Step 6: Final answer
x = 313,173.74
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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.