Finding the Fourth Proportional to 402,461.70, 603,765.45 and 202,278.30
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Solution
The fourth proportional to 402,461.70, 603,765.45 and 202,278.30 is: 303,454.09
Step by Step Solution
- Step 1: Write the proportion equation
402,461.70 : 603,765.45 = 202,278.30 : x - Step 2: Convert to fraction form
402,461.70/603,765.45 = 202,278.30/x - Step 3: Cross multiply
402,461.70x = 603,765.45 × 202,278.30 - Step 4: Simplify right side
402,461.70x = 122,128,648,824.74 - Step 5: Solve for x
x = 122,128,648,824.74/402,461.70 - Step 6: Final answer
x = 303,454.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.