Finding the Fourth Proportional to 317,430.12, 438,062.64 and 174,199.62
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Solution
The fourth proportional to 317,430.12, 438,062.64 and 174,199.62 is: 240,400.46
Step by Step Solution
- Step 1: Write the proportion equation
317,430.12 : 438,062.64 = 174,199.62 : x - Step 2: Convert to fraction form
317,430.12/438,062.64 = 174,199.62/x - Step 3: Cross multiply
317,430.12x = 438,062.64 × 174,199.62 - Step 4: Simplify right side
317,430.12x = 76,310,345,424.20 - Step 5: Solve for x
x = 76,310,345,424.20/317,430.12 - Step 6: Final answer
x = 240,400.46
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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.