Finding the Fourth Proportional to 278,053.36, 417,138.36 and 120,304.24
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Solution
The fourth proportional to 278,053.36, 417,138.36 and 120,304.24 is: 180,481.59
Step by Step Solution
- Step 1: Write the proportion equation
278,053.36 : 417,138.36 = 120,304.24 : x - Step 2: Convert to fraction form
278,053.36/417,138.36 = 120,304.24/x - Step 3: Cross multiply
278,053.36x = 417,138.36 × 120,304.24 - Step 4: Simplify right side
278,053.36x = 50,183,513,374.65 - Step 5: Solve for x
x = 50,183,513,374.65/278,053.36 - Step 6: Final answer
x = 180,481.59
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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.