Finding the Fourth Proportional to 354,657.80, 531,986.70 and 344,816.30
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Solution
The fourth proportional to 354,657.80, 531,986.70 and 344,816.30 is: 517,224.45
Step by Step Solution
- Step 1: Write the proportion equation
354,657.80 : 531,986.70 = 344,816.30 : x - Step 2: Convert to fraction form
354,657.80/531,986.70 = 344,816.30/x - Step 3: Cross multiply
354,657.80x = 531,986.70 × 344,816.30 - Step 4: Simplify right side
354,657.80x = 183,437,685,543.21 - Step 5: Solve for x
x = 183,437,685,543.21/354,657.80 - Step 6: Final answer
x = 517,224.45
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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.