Finding the Fourth Proportional to 261,812.14, 392,710.37 and 72,284.08
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Solution
The fourth proportional to 261,812.14, 392,710.37 and 72,284.08 is: 108,423.95
Step by Step Solution
- Step 1: Write the proportion equation
261,812.14 : 392,710.37 = 72,284.08 : x - Step 2: Convert to fraction form
261,812.14/392,710.37 = 72,284.08/x - Step 3: Cross multiply
261,812.14x = 392,710.37 × 72,284.08 - Step 4: Simplify right side
261,812.14x = 28,386,706,458.71 - Step 5: Solve for x
x = 28,386,706,458.71/261,812.14 - Step 6: Final answer
x = 108,423.95
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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.