Finding the Fourth Proportional to 330,372.19, 455,874.94 and 194,376.23
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Solution
The fourth proportional to 330,372.19, 455,874.94 and 194,376.23 is: 268,216.43
Step by Step Solution
- Step 1: Write the proportion equation
330,372.19 : 455,874.94 = 194,376.23 : x - Step 2: Convert to fraction form
330,372.19/455,874.94 = 194,376.23/x - Step 3: Cross multiply
330,372.19x = 455,874.94 × 194,376.23 - Step 4: Simplify right side
330,372.19x = 88,611,249,909.30 - Step 5: Solve for x
x = 88,611,249,909.30/330,372.19 - Step 6: Final answer
x = 268,216.43
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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.