Finding the Fourth Proportional to 402,633.99, 555,649.47 and 221,362.88
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Solution
The fourth proportional to 402,633.99, 555,649.47 and 221,362.88 is: 305,488.77
Step by Step Solution
- Step 1: Write the proportion equation
402,633.99 : 555,649.47 = 221,362.88 : x - Step 2: Convert to fraction form
402,633.99/555,649.47 = 221,362.88/x - Step 3: Cross multiply
402,633.99x = 555,649.47 × 221,362.88 - Step 4: Simplify right side
402,633.99x = 123,000,164,171.43 - Step 5: Solve for x
x = 123,000,164,171.43/402,633.99 - Step 6: Final answer
x = 305,488.77
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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.