Finding the Fourth Proportional to 420,119.55, 579,661.26 and 248,041.53
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Solution
The fourth proportional to 420,119.55, 579,661.26 and 248,041.53 is: 342,236.07
Step by Step Solution
- Step 1: Write the proportion equation
420,119.55 : 579,661.26 = 248,041.53 : x - Step 2: Convert to fraction form
420,119.55/579,661.26 = 248,041.53/x - Step 3: Cross multiply
420,119.55x = 579,661.26 × 248,041.53 - Step 4: Simplify right side
420,119.55x = 143,780,065,812.13 - Step 5: Solve for x
x = 143,780,065,812.13/420,119.55 - Step 6: Final answer
x = 342,236.07
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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.