Finding the Fourth Proportional to 395,141.12, 545,307.52 and 216,293.12
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Solution
The fourth proportional to 395,141.12, 545,307.52 and 216,293.12 is: 298,491.50
Step by Step Solution
- Step 1: Write the proportion equation
395,141.12 : 545,307.52 = 216,293.12 : x - Step 2: Convert to fraction form
395,141.12/545,307.52 = 216,293.12/x - Step 3: Cross multiply
395,141.12x = 545,307.52 × 216,293.12 - Step 4: Simplify right side
395,141.12x = 117,946,264,860.26 - Step 5: Solve for x
x = 117,946,264,860.26/395,141.12 - Step 6: Final answer
x = 298,491.50
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1.5x scale
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.