Finding the Fourth Proportional to 393,232.04, 542,655.05 and 221,149.95
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Solution
The fourth proportional to 393,232.04, 542,655.05 and 221,149.95 is: 305,184.02
Step by Step Solution
- Step 1: Write the proportion equation
393,232.04 : 542,655.05 = 221,149.95 : x - Step 2: Convert to fraction form
393,232.04/542,655.05 = 221,149.95/x - Step 3: Cross multiply
393,232.04x = 542,655.05 × 221,149.95 - Step 4: Simplify right side
393,232.04x = 120,008,134,034.04 - Step 5: Solve for x
x = 120,008,134,034.04/393,232.04 - Step 6: Final answer
x = 305,184.02
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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.