Finding the Fourth Proportional to 286,756.08, 395,712.12 and 159,422.40
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Solution
The fourth proportional to 286,756.08, 395,712.12 and 159,422.40 is: 219,996.65
Step by Step Solution
- Step 1: Write the proportion equation
286,756.08 : 395,712.12 = 159,422.40 : x - Step 2: Convert to fraction form
286,756.08/395,712.12 = 159,422.40/x - Step 3: Cross multiply
286,756.08x = 395,712.12 × 159,422.40 - Step 4: Simplify right side
286,756.08x = 63,085,375,879.49 - Step 5: Solve for x
x = 63,085,375,879.49/286,756.08 - Step 6: Final answer
x = 219,996.65
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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.