Finding the Fourth Proportional to 474,991.24, 655,488.90 and 257,202.28
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Solution
The fourth proportional to 474,991.24, 655,488.90 and 257,202.28 is: 354,939.68
Step by Step Solution
- Step 1: Write the proportion equation
474,991.24 : 655,488.90 = 257,202.28 : x - Step 2: Convert to fraction form
474,991.24/655,488.90 = 257,202.28/x - Step 3: Cross multiply
474,991.24x = 655,488.90 × 257,202.28 - Step 4: Simplify right side
474,991.24x = 168,593,239,594.69 - Step 5: Solve for x
x = 168,593,239,594.69/474,991.24 - Step 6: Final answer
x = 354,939.68
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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.