Finding the Fourth Proportional to 397,005.18, 547,805.48 and 235,856.09
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Solution
The fourth proportional to 397,005.18, 547,805.48 and 235,856.09 is: 325,444.76
Step by Step Solution
- Step 1: Write the proportion equation
397,005.18 : 547,805.48 = 235,856.09 : x - Step 2: Convert to fraction form
397,005.18/547,805.48 = 235,856.09/x - Step 3: Cross multiply
397,005.18x = 547,805.48 × 235,856.09 - Step 4: Simplify right side
397,005.18x = 129,203,254,675.07 - Step 5: Solve for x
x = 129,203,254,675.07/397,005.18 - Step 6: Final answer
x = 325,444.76
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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.