Finding the Fourth Proportional to 393,963.18, 591,129.36 and 194,174.61
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Solution
The fourth proportional to 393,963.18, 591,129.36 and 194,174.61 is: 291,352.89
Step by Step Solution
- Step 1: Write the proportion equation
393,963.18 : 591,129.36 = 194,174.61 : x - Step 2: Convert to fraction form
393,963.18/591,129.36 = 194,174.61/x - Step 3: Cross multiply
393,963.18x = 591,129.36 × 194,174.61 - Step 4: Simplify right side
393,963.18x = 114,782,312,937.55 - Step 5: Solve for x
x = 114,782,312,937.55/393,963.18 - Step 6: Final answer
x = 291,352.89
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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.