Finding the Fourth Proportional to 273,990.88, 378,106.02 and 153,132.10
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Solution
The fourth proportional to 273,990.88, 378,106.02 and 153,132.10 is: 211,321.52
Step by Step Solution
- Step 1: Write the proportion equation
273,990.88 : 378,106.02 = 153,132.10 : x - Step 2: Convert to fraction form
273,990.88/378,106.02 = 153,132.10/x - Step 3: Cross multiply
273,990.88x = 378,106.02 × 153,132.10 - Step 4: Simplify right side
273,990.88x = 57,900,168,865.24 - Step 5: Solve for x
x = 57,900,168,865.24/273,990.88 - Step 6: Final answer
x = 211,321.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.