Finding the Fourth Proportional to 323,867.97, 447,157.95 and 209,423.48
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Solution
The fourth proportional to 323,867.97, 447,157.95 and 209,423.48 is: 289,146.75
Step by Step Solution
- Step 1: Write the proportion equation
323,867.97 : 447,157.95 = 209,423.48 : x - Step 2: Convert to fraction form
323,867.97/447,157.95 = 209,423.48/x - Step 3: Cross multiply
323,867.97x = 447,157.95 × 209,423.48 - Step 4: Simplify right side
323,867.97x = 93,645,371,762.88 - Step 5: Solve for x
x = 93,645,371,762.88/323,867.97 - Step 6: Final answer
x = 289,146.75
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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.