Finding the Fourth Proportional to 386,508.68, 533,112.12 and 373,503.32
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Solution
The fourth proportional to 386,508.68, 533,112.12 and 373,503.32 is: 515,173.80
Step by Step Solution
- Step 1: Write the proportion equation
386,508.68 : 533,112.12 = 373,503.32 : x - Step 2: Convert to fraction form
386,508.68/533,112.12 = 373,503.32/x - Step 3: Cross multiply
386,508.68x = 533,112.12 × 373,503.32 - Step 4: Simplify right side
386,508.68x = 199,119,146,752.24 - Step 5: Solve for x
x = 199,119,146,752.24/386,508.68 - Step 6: Final answer
x = 515,173.80
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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.