Finding the Fourth Proportional to 254,511.75, 381,599.13 and 121,412.55
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Solution
The fourth proportional to 254,511.75, 381,599.13 and 121,412.55 is: 182,038.45
Step by Step Solution
- Step 1: Write the proportion equation
254,511.75 : 381,599.13 = 121,412.55 : x - Step 2: Convert to fraction form
254,511.75/381,599.13 = 121,412.55/x - Step 3: Cross multiply
254,511.75x = 381,599.13 × 121,412.55 - Step 4: Simplify right side
254,511.75x = 46,330,923,451.08 - Step 5: Solve for x
x = 46,330,923,451.08/254,511.75 - Step 6: Final answer
x = 182,038.45
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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.