Finding the Fourth Proportional to 354,057.48, 531,307.65 and 143,695.42
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Solution
The fourth proportional to 354,057.48, 531,307.65 and 143,695.42 is: 215,632.99
Step by Step Solution
- Step 1: Write the proportion equation
354,057.48 : 531,307.65 = 143,695.42 : x - Step 2: Convert to fraction form
354,057.48/531,307.65 = 143,695.42/x - Step 3: Cross multiply
354,057.48x = 531,307.65 × 143,695.42 - Step 4: Simplify right side
354,057.48x = 76,346,473,259.42 - Step 5: Solve for x
x = 76,346,473,259.42/354,057.48 - Step 6: Final answer
x = 215,632.99
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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.