Finding the Fourth Proportional to 316,101.92, 474,153.30 and 129,113.48
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Solution
The fourth proportional to 316,101.92, 474,153.30 and 129,113.48 is: 193,670.39
Step by Step Solution
- Step 1: Write the proportion equation
316,101.92 : 474,153.30 = 129,113.48 : x - Step 2: Convert to fraction form
316,101.92/474,153.30 = 129,113.48/x - Step 3: Cross multiply
316,101.92x = 474,153.30 × 129,113.48 - Step 4: Simplify right side
316,101.92x = 61,219,582,616.48 - Step 5: Solve for x
x = 61,219,582,616.48/316,101.92 - Step 6: Final answer
x = 193,670.39
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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.