Finding the Fourth Proportional to 402,202.60, 555,044.12 and 220,918.74
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Solution
The fourth proportional to 402,202.60, 555,044.12 and 220,918.74 is: 304,870.35
Step by Step Solution
- Step 1: Write the proportion equation
402,202.60 : 555,044.12 = 220,918.74 : x - Step 2: Convert to fraction form
402,202.60/555,044.12 = 220,918.74/x - Step 3: Cross multiply
402,202.60x = 555,044.12 × 220,918.74 - Step 4: Simplify right side
402,202.60x = 122,619,647,634.81 - Step 5: Solve for x
x = 122,619,647,634.81/402,202.60 - Step 6: Final answer
x = 304,870.35
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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.