Finding the Fourth Proportional to 346,139.84, 477,679.20 and 203,003.12
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Solution
The fourth proportional to 346,139.84, 477,679.20 and 203,003.12 is: 280,147.95
Step by Step Solution
- Step 1: Write the proportion equation
346,139.84 : 477,679.20 = 203,003.12 : x - Step 2: Convert to fraction form
346,139.84/477,679.20 = 203,003.12/x - Step 3: Cross multiply
346,139.84x = 477,679.20 × 203,003.12 - Step 4: Simplify right side
346,139.84x = 96,970,367,959.10 - Step 5: Solve for x
x = 96,970,367,959.10/346,139.84 - Step 6: Final answer
x = 280,147.95
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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.