Finding the Fourth Proportional to 401,640.18, 602,461.08 and 121,157.70
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Solution
The fourth proportional to 401,640.18, 602,461.08 and 121,157.70 is: 181,736.79
Step by Step Solution
- Step 1: Write the proportion equation
401,640.18 : 602,461.08 = 121,157.70 : x - Step 2: Convert to fraction form
401,640.18/602,461.08 = 121,157.70/x - Step 3: Cross multiply
401,640.18x = 602,461.08 × 121,157.70 - Step 4: Simplify right side
401,640.18x = 72,992,798,792.32 - Step 5: Solve for x
x = 72,992,798,792.32/401,640.18 - Step 6: Final answer
x = 181,736.79
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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.