Finding the Fourth Proportional to 263,478.70, 395,218.05 and 121,323.70
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Solution
The fourth proportional to 263,478.70, 395,218.05 and 121,323.70 is: 181,985.55
Step by Step Solution
- Step 1: Write the proportion equation
263,478.70 : 395,218.05 = 121,323.70 : x - Step 2: Convert to fraction form
263,478.70/395,218.05 = 121,323.70/x - Step 3: Cross multiply
263,478.70x = 395,218.05 × 121,323.70 - Step 4: Simplify right side
263,478.70x = 47,949,316,132.79 - Step 5: Solve for x
x = 47,949,316,132.79/263,478.70 - Step 6: Final answer
x = 181,985.55
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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.