Finding the Fourth Proportional to 317,747.68, 438,248.96 and 215,851.68
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Solution
The fourth proportional to 317,747.68, 438,248.96 and 215,851.68 is: 297,710.35
Step by Step Solution
- Step 1: Write the proportion equation
317,747.68 : 438,248.96 = 215,851.68 : x - Step 2: Convert to fraction form
317,747.68/438,248.96 = 215,851.68/x - Step 3: Cross multiply
317,747.68x = 438,248.96 × 215,851.68 - Step 4: Simplify right side
317,747.68x = 94,596,774,274.25 - Step 5: Solve for x
x = 94,596,774,274.25/317,747.68 - Step 6: Final answer
x = 297,710.35
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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.