Finding the Fourth Proportional to 278,633.95, 417,950.93 and 68,270.06
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Solution
The fourth proportional to 278,633.95, 417,950.93 and 68,270.06 is: 102,405.09
Step by Step Solution
- Step 1: Write the proportion equation
278,633.95 : 417,950.93 = 68,270.06 : x - Step 2: Convert to fraction form
278,633.95/417,950.93 = 68,270.06/x - Step 3: Cross multiply
278,633.95x = 417,950.93 × 68,270.06 - Step 4: Simplify right side
278,633.95x = 28,533,535,771.68 - Step 5: Solve for x
x = 28,533,535,771.68/278,633.95 - Step 6: Final answer
x = 102,405.09
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1.5x scale
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.