Finding the Fourth Proportional to 402,803.01, 555,857.07 and 221,514.95
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Solution
The fourth proportional to 402,803.01, 555,857.07 and 221,514.95 is: 305,684.53
Step by Step Solution
- Step 1: Write the proportion equation
402,803.01 : 555,857.07 = 221,514.95 : x - Step 2: Convert to fraction form
402,803.01/555,857.07 = 221,514.95/x - Step 3: Cross multiply
402,803.01x = 555,857.07 × 221,514.95 - Step 4: Simplify right side
402,803.01x = 123,130,648,288.91 - Step 5: Solve for x
x = 123,130,648,288.91/402,803.01 - Step 6: Final answer
x = 305,684.53
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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.