Finding the Fourth Proportional to 516,543.12, 774,859.32 and 142,566.12
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Solution
The fourth proportional to 516,543.12, 774,859.32 and 142,566.12 is: 213,861.50
Step by Step Solution
- Step 1: Write the proportion equation
516,543.12 : 774,859.32 = 142,566.12 : x - Step 2: Convert to fraction form
516,543.12/774,859.32 = 142,566.12/x - Step 3: Cross multiply
516,543.12x = 774,859.32 × 142,566.12 - Step 4: Simplify right side
516,543.12x = 110,468,686,798.24 - Step 5: Solve for x
x = 110,468,686,798.24/516,543.12 - Step 6: Final answer
x = 213,861.50
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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.