Finding the Fourth Proportional to 378,728.04, 522,171.95 and 242,538.08
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Solution
The fourth proportional to 378,728.04, 522,171.95 and 242,538.08 is: 334,399.81
Step by Step Solution
- Step 1: Write the proportion equation
378,728.04 : 522,171.95 = 242,538.08 : x - Step 2: Convert to fraction form
378,728.04/522,171.95 = 242,538.08/x - Step 3: Cross multiply
378,728.04x = 522,171.95 × 242,538.08 - Step 4: Simplify right side
378,728.04x = 126,646,582,660.80 - Step 5: Solve for x
x = 126,646,582,660.80/378,728.04 - Step 6: Final answer
x = 334,399.81
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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.