Finding the Fourth Proportional to 263,809.68, 395,671.05 and 74,283.18
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Solution
The fourth proportional to 263,809.68, 395,671.05 and 74,283.18 is: 111,412.53
Step by Step Solution
- Step 1: Write the proportion equation
263,809.68 : 395,671.05 = 74,283.18 : x - Step 2: Convert to fraction form
263,809.68/395,671.05 = 74,283.18/x - Step 3: Cross multiply
263,809.68x = 395,671.05 × 74,283.18 - Step 4: Simplify right side
263,809.68x = 29,391,703,827.94 - Step 5: Solve for x
x = 29,391,703,827.94/263,809.68 - Step 6: Final answer
x = 111,412.53
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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.