Finding the Fourth Proportional to 316,385.19, 436,157.46 and 225,583.79
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Solution
The fourth proportional to 316,385.19, 436,157.46 and 225,583.79 is: 310,981.85
Step by Step Solution
- Step 1: Write the proportion equation
316,385.19 : 436,157.46 = 225,583.79 : x - Step 2: Convert to fraction form
316,385.19/436,157.46 = 225,583.79/x - Step 3: Cross multiply
316,385.19x = 436,157.46 × 225,583.79 - Step 4: Simplify right side
316,385.19x = 98,390,050,682.79 - Step 5: Solve for x
x = 98,390,050,682.79/316,385.19 - Step 6: Final answer
x = 310,981.85
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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.