Finding the Fourth Proportional to 420,149.08, 579,812.64 and 229,162.48
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Solution
The fourth proportional to 420,149.08, 579,812.64 and 229,162.48 is: 316,247.99
Step by Step Solution
- Step 1: Write the proportion equation
420,149.08 : 579,812.64 = 229,162.48 : x - Step 2: Convert to fraction form
420,149.08/579,812.64 = 229,162.48/x - Step 3: Cross multiply
420,149.08x = 579,812.64 × 229,162.48 - Step 4: Simplify right side
420,149.08x = 132,871,302,517.75 - Step 5: Solve for x
x = 132,871,302,517.75/420,149.08 - Step 6: Final answer
x = 316,247.99
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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.