Finding the Fourth Proportional to 425,884.01, 638,959.05 and 126,366.08
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Solution
The fourth proportional to 425,884.01, 638,959.05 and 126,366.08 is: 189,588.59
Step by Step Solution
- Step 1: Write the proportion equation
425,884.01 : 638,959.05 = 126,366.08 : x - Step 2: Convert to fraction form
425,884.01/638,959.05 = 126,366.08/x - Step 3: Cross multiply
425,884.01x = 638,959.05 × 126,366.08 - Step 4: Simplify right side
425,884.01x = 80,742,747,234.23 - Step 5: Solve for x
x = 80,742,747,234.23/425,884.01 - Step 6: Final answer
x = 189,588.59
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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.