Finding the Fourth Proportional to 346,203.15, 519,531.79 and 121,557.80
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Solution
The fourth proportional to 346,203.15, 519,531.79 and 121,557.80 is: 182,416.42
Step by Step Solution
- Step 1: Write the proportion equation
346,203.15 : 519,531.79 = 121,557.80 : x - Step 2: Convert to fraction form
346,203.15/519,531.79 = 121,557.80/x - Step 3: Cross multiply
346,203.15x = 519,531.79 × 121,557.80 - Step 4: Simplify right side
346,203.15x = 63,153,138,520.91 - Step 5: Solve for x
x = 63,153,138,520.91/346,203.15 - Step 6: Final answer
x = 182,416.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.