Finding the Fourth Proportional to 225,280.67, 310,886.19 and 121,914.79
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Solution
The fourth proportional to 225,280.67, 310,886.19 and 121,914.79 is: 168,241.80
Step by Step Solution
- Step 1: Write the proportion equation
225,280.67 : 310,886.19 = 121,914.79 : x - Step 2: Convert to fraction form
225,280.67/310,886.19 = 121,914.79/x - Step 3: Cross multiply
225,280.67x = 310,886.19 × 121,914.79 - Step 4: Simplify right side
225,280.67x = 37,901,623,790.53 - Step 5: Solve for x
x = 37,901,623,790.53/225,280.67 - Step 6: Final answer
x = 168,241.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.