Finding the Fourth Proportional to 264,909.70, 397,364.55 and 115,221.70
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Solution
The fourth proportional to 264,909.70, 397,364.55 and 115,221.70 is: 172,832.55
Step by Step Solution
- Step 1: Write the proportion equation
264,909.70 : 397,364.55 = 115,221.70 : x - Step 2: Convert to fraction form
264,909.70/397,364.55 = 115,221.70/x - Step 3: Cross multiply
264,909.70x = 397,364.55 × 115,221.70 - Step 4: Simplify right side
264,909.70x = 45,785,018,970.74 - Step 5: Solve for x
x = 45,785,018,970.74/264,909.70 - Step 6: Final answer
x = 172,832.55
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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.