Finding the Fourth Proportional to 402,655.19, 555,650.00 and 221,365.80
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Solution
The fourth proportional to 402,655.19, 555,650.00 and 221,365.80 is: 305,477.02
Step by Step Solution
- Step 1: Write the proportion equation
402,655.19 : 555,650.00 = 221,365.80 : x - Step 2: Convert to fraction form
402,655.19/555,650.00 = 221,365.80/x - Step 3: Cross multiply
402,655.19x = 555,650.00 × 221,365.80 - Step 4: Simplify right side
402,655.19x = 123,001,907,052.30 - Step 5: Solve for x
x = 123,001,907,052.30/402,655.19 - Step 6: Final answer
x = 305,477.02
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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.