Finding the Fourth Proportional to 402,657.18, 555,652.76 and 221,367.80
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Solution
The fourth proportional to 402,657.18, 555,652.76 and 221,367.80 is: 305,479.79
Step by Step Solution
- Step 1: Write the proportion equation
402,657.18 : 555,652.76 = 221,367.80 : x - Step 2: Convert to fraction form
402,657.18/555,652.76 = 221,367.80/x - Step 3: Cross multiply
402,657.18x = 555,652.76 × 221,367.80 - Step 4: Simplify right side
402,657.18x = 123,003,629,045.13 - Step 5: Solve for x
x = 123,003,629,045.13/402,657.18 - Step 6: Final answer
x = 305,479.79
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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.