Finding the Fourth Proportional to 438,678.96, 658,018.37 and 239,167.13
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Solution
The fourth proportional to 438,678.96, 658,018.37 and 239,167.13 is: 358,750.65
Step by Step Solution
- Step 1: Write the proportion equation
438,678.96 : 658,018.37 = 239,167.13 : x - Step 2: Convert to fraction form
438,678.96/658,018.37 = 239,167.13/x - Step 3: Cross multiply
438,678.96x = 658,018.37 × 239,167.13 - Step 4: Simplify right side
438,678.96x = 157,376,360,554.25 - Step 5: Solve for x
x = 157,376,360,554.25/438,678.96 - Step 6: Final answer
x = 358,750.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.