Finding the Fourth Proportional to 330,207.68, 455,691.48 and 186,963.68
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Solution
The fourth proportional to 330,207.68, 455,691.48 and 186,963.68 is: 258,012.64
Step by Step Solution
- Step 1: Write the proportion equation
330,207.68 : 455,691.48 = 186,963.68 : x - Step 2: Convert to fraction form
330,207.68/455,691.48 = 186,963.68/x - Step 3: Cross multiply
330,207.68x = 455,691.48 × 186,963.68 - Step 4: Simplify right side
330,207.68x = 85,197,756,045.45 - Step 5: Solve for x
x = 85,197,756,045.45/330,207.68 - Step 6: Final answer
x = 258,012.64
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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.