Finding the Fourth Proportional to 253,465.74, 349,422.12 and 172,789.74
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Solution
The fourth proportional to 253,465.74, 349,422.12 and 172,789.74 is: 238,204.02
Step by Step Solution
- Step 1: Write the proportion equation
253,465.74 : 349,422.12 = 172,789.74 : x - Step 2: Convert to fraction form
253,465.74/349,422.12 = 172,789.74/x - Step 3: Cross multiply
253,465.74x = 349,422.12 × 172,789.74 - Step 4: Simplify right side
253,465.74x = 60,376,557,265.05 - Step 5: Solve for x
x = 60,376,557,265.05/253,465.74 - Step 6: Final answer
x = 238,204.02
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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.