Finding the Fourth Proportional to 321,909.70, 482,862.15 and 97,269.70
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Solution
The fourth proportional to 321,909.70, 482,862.15 and 97,269.70 is: 145,903.82
Step by Step Solution
- Step 1: Write the proportion equation
321,909.70 : 482,862.15 = 97,269.70 : x - Step 2: Convert to fraction form
321,909.70/482,862.15 = 97,269.70/x - Step 3: Cross multiply
321,909.70x = 482,862.15 × 97,269.70 - Step 4: Simplify right side
321,909.70x = 46,967,856,471.86 - Step 5: Solve for x
x = 46,967,856,471.86/321,909.70 - Step 6: Final answer
x = 145,903.82
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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.