Finding the Fourth Proportional to 290,858.29, 435,385.28 and 157,407.55
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Solution
The fourth proportional to 290,858.29, 435,385.28 and 157,407.55 is: 235,623.09
Step by Step Solution
- Step 1: Write the proportion equation
290,858.29 : 435,385.28 = 157,407.55 : x - Step 2: Convert to fraction form
290,858.29/435,385.28 = 157,407.55/x - Step 3: Cross multiply
290,858.29x = 435,385.28 × 157,407.55 - Step 4: Simplify right side
290,858.29x = 68,532,931,099.54 - Step 5: Solve for x
x = 68,532,931,099.54/290,858.29 - Step 6: Final answer
x = 235,623.09
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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.