Finding the Fourth Proportional to 289,725.60, 434,521.95 and 79,379.94
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Solution
The fourth proportional to 289,725.60, 434,521.95 and 79,379.94 is: 119,051.70
Step by Step Solution
- Step 1: Write the proportion equation
289,725.60 : 434,521.95 = 79,379.94 : x - Step 2: Convert to fraction form
289,725.60/434,521.95 = 79,379.94/x - Step 3: Cross multiply
289,725.60x = 434,521.95 × 79,379.94 - Step 4: Simplify right side
289,725.60x = 34,492,326,319.68 - Step 5: Solve for x
x = 34,492,326,319.68/289,725.60 - Step 6: Final answer
x = 119,051.70
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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.