Finding the Fourth Proportional to 317,539.14, 438,202.35 and 174,301.62
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Solution
The fourth proportional to 317,539.14, 438,202.35 and 174,301.62 is: 240,535.32
Step by Step Solution
- Step 1: Write the proportion equation
317,539.14 : 438,202.35 = 174,301.62 : x - Step 2: Convert to fraction form
317,539.14/438,202.35 = 174,301.62/x - Step 3: Cross multiply
317,539.14x = 438,202.35 × 174,301.62 - Step 4: Simplify right side
317,539.14x = 76,379,379,492.81 - Step 5: Solve for x
x = 76,379,379,492.81/317,539.14 - Step 6: Final answer
x = 240,535.32
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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.