Finding the Fourth Proportional to 278,069.85, 417,101.13 and 67,707.99
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Solution
The fourth proportional to 278,069.85, 417,101.13 and 67,707.99 is: 101,561.10
Step by Step Solution
- Step 1: Write the proportion equation
278,069.85 : 417,101.13 = 67,707.99 : x - Step 2: Convert to fraction form
278,069.85/417,101.13 = 67,707.99/x - Step 3: Cross multiply
278,069.85x = 417,101.13 × 67,707.99 - Step 4: Simplify right side
278,069.85x = 28,241,079,139.03 - Step 5: Solve for x
x = 28,241,079,139.03/278,069.85 - Step 6: Final answer
x = 101,561.10
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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.