Finding the Fourth Proportional to 316,197.92, 474,297.68 and 129,209.44
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Solution
The fourth proportional to 316,197.92, 474,297.68 and 129,209.44 is: 193,814.49
Step by Step Solution
- Step 1: Write the proportion equation
316,197.92 : 474,297.68 = 129,209.44 : x - Step 2: Convert to fraction form
316,197.92/474,297.68 = 129,209.44/x - Step 3: Cross multiply
316,197.92x = 474,297.68 × 129,209.44 - Step 4: Simplify right side
316,197.92x = 61,283,737,626.10 - Step 5: Solve for x
x = 61,283,737,626.10/316,197.92 - Step 6: Final answer
x = 193,814.49
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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.