Finding the Fourth Proportional to 317,440.19, 438,074.66 and 174,209.31
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Solution
The fourth proportional to 317,440.19, 438,074.66 and 174,209.31 is: 240,412.80
Step by Step Solution
- Step 1: Write the proportion equation
317,440.19 : 438,074.66 = 174,209.31 : x - Step 2: Convert to fraction form
317,440.19/438,074.66 = 174,209.31/x - Step 3: Cross multiply
317,440.19x = 438,074.66 × 174,209.31 - Step 4: Simplify right side
317,440.19x = 76,316,684,247.08 - Step 5: Solve for x
x = 76,316,684,247.08/317,440.19 - Step 6: Final answer
x = 240,412.80
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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.