Finding the Fourth Proportional to 321,437.18, 482,159.74 and 221,570.52
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Solution
The fourth proportional to 321,437.18, 482,159.74 and 221,570.52 is: 332,358.52
Step by Step Solution
- Step 1: Write the proportion equation
321,437.18 : 482,159.74 = 221,570.52 : x - Step 2: Convert to fraction form
321,437.18/482,159.74 = 221,570.52/x - Step 3: Cross multiply
321,437.18x = 482,159.74 × 221,570.52 - Step 4: Simplify right side
321,437.18x = 106,832,384,314.87 - Step 5: Solve for x
x = 106,832,384,314.87/321,437.18 - Step 6: Final answer
x = 332,358.52
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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.