Finding the Fourth Proportional to 197,483.88, 272,410.76 and 121,037.28
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Solution
The fourth proportional to 197,483.88, 272,410.76 and 121,037.28 is: 166,959.74
Step by Step Solution
- Step 1: Write the proportion equation
197,483.88 : 272,410.76 = 121,037.28 : x - Step 2: Convert to fraction form
197,483.88/272,410.76 = 121,037.28/x - Step 3: Cross multiply
197,483.88x = 272,410.76 × 121,037.28 - Step 4: Simplify right side
197,483.88x = 32,971,857,433.13 - Step 5: Solve for x
x = 32,971,857,433.13/197,483.88 - Step 6: Final answer
x = 166,959.74
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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.