Finding the Fourth Proportional to 402,657.06, 555,652.58 and 221,367.68
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Solution
The fourth proportional to 402,657.06, 555,652.58 and 221,367.68 is: 305,479.61
Step by Step Solution
- Step 1: Write the proportion equation
402,657.06 : 555,652.58 = 221,367.68 : x - Step 2: Convert to fraction form
402,657.06/555,652.58 = 221,367.68/x - Step 3: Cross multiply
402,657.06x = 555,652.58 × 221,367.68 - Step 4: Simplify right side
402,657.06x = 123,003,522,520.61 - Step 5: Solve for x
x = 123,003,522,520.61/402,657.06 - Step 6: Final answer
x = 305,479.61
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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.