Finding the Fourth Proportional to 317,486.42, 438,158.16 and 174,270.74
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Solution
The fourth proportional to 317,486.42, 438,158.16 and 174,270.74 is: 240,508.39
Step by Step Solution
- Step 1: Write the proportion equation
317,486.42 : 438,158.16 = 174,270.74 : x - Step 2: Convert to fraction form
317,486.42/438,158.16 = 174,270.74/x - Step 3: Cross multiply
317,486.42x = 438,158.16 × 174,270.74 - Step 4: Simplify right side
317,486.42x = 76,358,146,780.24 - Step 5: Solve for x
x = 76,358,146,780.24/317,486.42 - Step 6: Final answer
x = 240,508.39
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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.