Finding the Fourth Proportional to 278,642.35, 417,831.77 and 107,944.02
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Solution
The fourth proportional to 278,642.35, 417,831.77 and 107,944.02 is: 161,864.99
Step by Step Solution
- Step 1: Write the proportion equation
278,642.35 : 417,831.77 = 107,944.02 : x - Step 2: Convert to fraction form
278,642.35/417,831.77 = 107,944.02/x - Step 3: Cross multiply
278,642.35x = 417,831.77 × 107,944.02 - Step 4: Simplify right side
278,642.35x = 45,102,440,937.52 - Step 5: Solve for x
x = 45,102,440,937.52/278,642.35 - Step 6: Final answer
x = 161,864.99
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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.