Finding the Fourth Proportional to 402,209.30, 603,313.95 and 165,721.70
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Solution
The fourth proportional to 402,209.30, 603,313.95 and 165,721.70 is: 248,582.55
Step by Step Solution
- Step 1: Write the proportion equation
402,209.30 : 603,313.95 = 165,721.70 : x - Step 2: Convert to fraction form
402,209.30/603,313.95 = 165,721.70/x - Step 3: Cross multiply
402,209.30x = 603,313.95 × 165,721.70 - Step 4: Simplify right side
402,209.30x = 99,982,213,427.72 - Step 5: Solve for x
x = 99,982,213,427.72/402,209.30 - Step 6: Final answer
x = 248,582.55
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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.