Finding the Fourth Proportional to 402,753.24, 555,780.45 and 221,472.81
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Solution
The fourth proportional to 402,753.24, 555,780.45 and 221,472.81 is: 305,622.02
Step by Step Solution
- Step 1: Write the proportion equation
402,753.24 : 555,780.45 = 221,472.81 : x - Step 2: Convert to fraction form
402,753.24/555,780.45 = 221,472.81/x - Step 3: Cross multiply
402,753.24x = 555,780.45 × 221,472.81 - Step 4: Simplify right side
402,753.24x = 123,090,256,897.20 - Step 5: Solve for x
x = 123,090,256,897.20/402,753.24 - Step 6: Final answer
x = 305,622.02
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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.