Finding the Fourth Proportional to 311,029.70, 466,457.07 and 86,335.70
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Solution
The fourth proportional to 311,029.70, 466,457.07 and 86,335.70 is: 129,479.27
Step by Step Solution
- Step 1: Write the proportion equation
311,029.70 : 466,457.07 = 86,335.70 : x - Step 2: Convert to fraction form
311,029.70/466,457.07 = 86,335.70/x - Step 3: Cross multiply
311,029.70x = 466,457.07 × 86,335.70 - Step 4: Simplify right side
311,029.70x = 40,271,897,658.40 - Step 5: Solve for x
x = 40,271,897,658.40/311,029.70 - Step 6: Final answer
x = 129,479.27
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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.