Finding the Fourth Proportional to 420,124.08, 579,771.18 and 229,137.48
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Solution
The fourth proportional to 420,124.08, 579,771.18 and 229,137.48 is: 316,209.69
Step by Step Solution
- Step 1: Write the proportion equation
420,124.08 : 579,771.18 = 229,137.48 : x - Step 2: Convert to fraction form
420,124.08/579,771.18 = 229,137.48/x - Step 3: Cross multiply
420,124.08x = 579,771.18 × 229,137.48 - Step 4: Simplify right side
420,124.08x = 132,847,307,161.83 - Step 5: Solve for x
x = 132,847,307,161.83/420,124.08 - Step 6: Final answer
x = 316,209.69
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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.