Finding the Fourth Proportional to 278,051.36, 417,135.36 and 120,302.24
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Solution
The fourth proportional to 278,051.36, 417,135.36 and 120,302.24 is: 180,478.59
Step by Step Solution
- Step 1: Write the proportion equation
278,051.36 : 417,135.36 = 120,302.24 : x - Step 2: Convert to fraction form
278,051.36/417,135.36 = 120,302.24/x - Step 3: Cross multiply
278,051.36x = 417,135.36 × 120,302.24 - Step 4: Simplify right side
278,051.36x = 50,182,318,191.21 - Step 5: Solve for x
x = 50,182,318,191.21/278,051.36 - Step 6: Final answer
x = 180,478.59
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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.