Finding the Fourth Proportional to 276,221.68, 381,197.30 and 155,368.60
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Solution
The fourth proportional to 276,221.68, 381,197.30 and 155,368.60 is: 214,415.07
Step by Step Solution
- Step 1: Write the proportion equation
276,221.68 : 381,197.30 = 155,368.60 : x - Step 2: Convert to fraction form
276,221.68/381,197.30 = 155,368.60/x - Step 3: Cross multiply
276,221.68x = 381,197.30 × 155,368.60 - Step 4: Simplify right side
276,221.68x = 59,226,090,824.78 - Step 5: Solve for x
x = 59,226,090,824.78/276,221.68 - Step 6: Final answer
x = 214,415.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.