Finding the Fourth Proportional to 274,376.74, 411,572.40 and 74,701.21
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Solution
The fourth proportional to 274,376.74, 411,572.40 and 74,701.21 is: 112,053.80
Step by Step Solution
- Step 1: Write the proportion equation
274,376.74 : 411,572.40 = 74,701.21 : x - Step 2: Convert to fraction form
274,376.74/411,572.40 = 74,701.21/x - Step 3: Cross multiply
274,376.74x = 411,572.40 × 74,701.21 - Step 4: Simplify right side
274,376.74x = 30,744,956,282.60 - Step 5: Solve for x
x = 30,744,956,282.60/274,376.74 - Step 6: Final answer
x = 112,053.80
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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.