Finding the Fourth Proportional to 317,628.12, 438,327.68 and 174,397.44
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Solution
The fourth proportional to 317,628.12, 438,327.68 and 174,397.44 is: 240,668.95
Step by Step Solution
- Step 1: Write the proportion equation
317,628.12 : 438,327.68 = 174,397.44 : x - Step 2: Convert to fraction form
317,628.12/438,327.68 = 174,397.44/x - Step 3: Cross multiply
317,628.12x = 438,327.68 × 174,397.44 - Step 4: Simplify right side
317,628.12x = 76,443,226,044.88 - Step 5: Solve for x
x = 76,443,226,044.88/317,628.12 - Step 6: Final answer
x = 240,668.95
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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.