Finding the Fourth Proportional to 420,251.71, 579,935.87 and 229,265.05
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Solution
The fourth proportional to 420,251.71, 579,935.87 and 229,265.05 is: 316,379.50
Step by Step Solution
- Step 1: Write the proportion equation
420,251.71 : 579,935.87 = 229,265.05 : x - Step 2: Convert to fraction form
420,251.71/579,935.87 = 229,265.05/x - Step 3: Cross multiply
420,251.71x = 579,935.87 × 229,265.05 - Step 4: Simplify right side
420,251.71x = 132,959,023,332.66 - Step 5: Solve for x
x = 132,959,023,332.66/420,251.71 - Step 6: Final answer
x = 316,379.50
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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.