Finding the Fourth Proportional to 542,478.22, 813,624.99 and 143,122.84
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Solution
The fourth proportional to 542,478.22, 813,624.99 and 143,122.84 is: 214,659.90
Step by Step Solution
- Step 1: Write the proportion equation
542,478.22 : 813,624.99 = 143,122.84 : x - Step 2: Convert to fraction form
542,478.22/813,624.99 = 143,122.84/x - Step 3: Cross multiply
542,478.22x = 813,624.99 × 143,122.84 - Step 4: Simplify right side
542,478.22x = 116,448,319,263.77 - Step 5: Solve for x
x = 116,448,319,263.77/542,478.22 - Step 6: Final answer
x = 214,659.90
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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.