Finding the Fourth Proportional to 192,511.64, 288,787.26 and 72,669.53
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Solution
The fourth proportional to 192,511.64, 288,787.26 and 72,669.53 is: 109,011.77
Step by Step Solution
- Step 1: Write the proportion equation
192,511.64 : 288,787.26 = 72,669.53 : x - Step 2: Convert to fraction form
192,511.64/288,787.26 = 72,669.53/x - Step 3: Cross multiply
192,511.64x = 288,787.26 × 72,669.53 - Step 4: Simplify right side
192,511.64x = 20,986,034,454.19 - Step 5: Solve for x
x = 20,986,034,454.19/192,511.64 - Step 6: Final answer
x = 109,011.77
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1.5x scale
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.