Finding the Fourth Proportional to 317,702.10, 438,431.94 and 174,465.14
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Solution
The fourth proportional to 317,702.10, 438,431.94 and 174,465.14 is: 240,763.56
Step by Step Solution
- Step 1: Write the proportion equation
317,702.10 : 438,431.94 = 174,465.14 : x - Step 2: Convert to fraction form
317,702.10/438,431.94 = 174,465.14/x - Step 3: Cross multiply
317,702.10x = 438,431.94 × 174,465.14 - Step 4: Simplify right side
317,702.10x = 76,491,089,792.57 - Step 5: Solve for x
x = 76,491,089,792.57/317,702.10 - Step 6: Final answer
x = 240,763.56
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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.