Finding the Fourth Proportional to 389,067.42, 536,913.04 and 210,219.42
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Solution
The fourth proportional to 389,067.42, 536,913.04 and 210,219.42 is: 290,102.80
Step by Step Solution
- Step 1: Write the proportion equation
389,067.42 : 536,913.04 = 210,219.42 : x - Step 2: Convert to fraction form
389,067.42/536,913.04 = 210,219.42/x - Step 3: Cross multiply
389,067.42x = 536,913.04 × 210,219.42 - Step 4: Simplify right side
389,067.42x = 112,869,547,859.24 - Step 5: Solve for x
x = 112,869,547,859.24/389,067.42 - Step 6: Final answer
x = 290,102.80
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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.