Finding the Fourth Proportional to 417,681.28, 576,400.68 and 226,694.64
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Solution
The fourth proportional to 417,681.28, 576,400.68 and 226,694.64 is: 312,838.88
Step by Step Solution
- Step 1: Write the proportion equation
417,681.28 : 576,400.68 = 226,694.64 : x - Step 2: Convert to fraction form
417,681.28/576,400.68 = 226,694.64/x - Step 3: Cross multiply
417,681.28x = 576,400.68 × 226,694.64 - Step 4: Simplify right side
417,681.28x = 130,666,944,648.36 - Step 5: Solve for x
x = 130,666,944,648.36/417,681.28 - Step 6: Final answer
x = 312,838.88
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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.