Finding the Fourth Proportional to 330,205.68, 455,688.72 and 186,961.68
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Solution
The fourth proportional to 330,205.68, 455,688.72 and 186,961.68 is: 258,009.88
Step by Step Solution
- Step 1: Write the proportion equation
330,205.68 : 455,688.72 = 186,961.68 : x - Step 2: Convert to fraction form
330,205.68/455,688.72 = 186,961.68/x - Step 3: Cross multiply
330,205.68x = 455,688.72 × 186,961.68 - Step 4: Simplify right side
330,205.68x = 85,196,328,648.25 - Step 5: Solve for x
x = 85,196,328,648.25/330,205.68 - Step 6: Final answer
x = 258,009.88
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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.