Finding the Fourth Proportional to 266,423.14, 399,831.93 and 126,182.17
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Solution
The fourth proportional to 266,423.14, 399,831.93 and 126,182.17 is: 189,366.66
Step by Step Solution
- Step 1: Write the proportion equation
266,423.14 : 399,831.93 = 126,182.17 : x - Step 2: Convert to fraction form
266,423.14/399,831.93 = 126,182.17/x - Step 3: Cross multiply
266,423.14x = 399,831.93 × 126,182.17 - Step 4: Simplify right side
266,423.14x = 50,451,660,562.69 - Step 5: Solve for x
x = 50,451,660,562.69/266,423.14 - Step 6: Final answer
x = 189,366.66
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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.