Finding the Fourth Proportional to 317,776.88, 438,348.96 and 190,378.68
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Solution
The fourth proportional to 317,776.88, 438,348.96 and 190,378.68 is: 262,612.86
Step by Step Solution
- Step 1: Write the proportion equation
317,776.88 : 438,348.96 = 190,378.68 : x - Step 2: Convert to fraction form
317,776.88/438,348.96 = 190,378.68/x - Step 3: Cross multiply
317,776.88x = 438,348.96 × 190,378.68 - Step 4: Simplify right side
317,776.88x = 83,452,296,384.17 - Step 5: Solve for x
x = 83,452,296,384.17/317,776.88 - Step 6: Final answer
x = 262,612.86
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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.