Finding the Fourth Proportional to 402,900.62, 555,991.16 and 221,612.49
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Solution
The fourth proportional to 402,900.62, 555,991.16 and 221,612.49 is: 305,818.80
Step by Step Solution
- Step 1: Write the proportion equation
402,900.62 : 555,991.16 = 221,612.49 : x - Step 2: Convert to fraction form
402,900.62/555,991.16 = 221,612.49/x - Step 3: Cross multiply
402,900.62x = 555,991.16 × 221,612.49 - Step 4: Simplify right side
402,900.62x = 123,214,584,277.53 - Step 5: Solve for x
x = 123,214,584,277.53/402,900.62 - Step 6: Final answer
x = 305,818.80
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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.