Finding the Fourth Proportional to 319,289.10, 440,387.37 and 217,132.98
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Solution
The fourth proportional to 319,289.10, 440,387.37 and 217,132.98 is: 299,486.02
Step by Step Solution
- Step 1: Write the proportion equation
319,289.10 : 440,387.37 = 217,132.98 : x - Step 2: Convert to fraction form
319,289.10/440,387.37 = 217,132.98/x - Step 3: Cross multiply
319,289.10x = 440,387.37 × 217,132.98 - Step 4: Simplify right side
319,289.10x = 95,622,622,002.46 - Step 5: Solve for x
x = 95,622,622,002.46/319,289.10 - Step 6: Final answer
x = 299,486.02
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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.