Finding the Fourth Proportional to 272,909.80, 409,364.70 and 154,811.80
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Solution
The fourth proportional to 272,909.80, 409,364.70 and 154,811.80 is: 232,217.70
Step by Step Solution
- Step 1: Write the proportion equation
272,909.80 : 409,364.70 = 154,811.80 : x - Step 2: Convert to fraction form
272,909.80/409,364.70 = 154,811.80/x - Step 3: Cross multiply
272,909.80x = 409,364.70 × 154,811.80 - Step 4: Simplify right side
272,909.80x = 63,374,486,063.46 - Step 5: Solve for x
x = 63,374,486,063.46/272,909.80 - Step 6: Final answer
x = 232,217.70
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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.