Finding the Fourth Proportional to 396,686.19, 547,349.91 and 235,591.77
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Solution
The fourth proportional to 396,686.19, 547,349.91 and 235,591.77 is: 325,070.89
Step by Step Solution
- Step 1: Write the proportion equation
396,686.19 : 547,349.91 = 235,591.77 : x - Step 2: Convert to fraction form
396,686.19/547,349.91 = 235,591.77/x - Step 3: Cross multiply
396,686.19x = 547,349.91 × 235,591.77 - Step 4: Simplify right side
396,686.19x = 128,951,134,106.24 - Step 5: Solve for x
x = 128,951,134,106.24/396,686.19 - Step 6: Final answer
x = 325,070.89
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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.