Finding the Fourth Proportional to 331,881.34, 457,988.65 and 202,819.31
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Solution
The fourth proportional to 331,881.34, 457,988.65 and 202,819.31 is: 279,885.99
Step by Step Solution
- Step 1: Write the proportion equation
331,881.34 : 457,988.65 = 202,819.31 : x - Step 2: Convert to fraction form
331,881.34/457,988.65 = 202,819.31/x - Step 3: Cross multiply
331,881.34x = 457,988.65 × 202,819.31 - Step 4: Simplify right side
331,881.34x = 92,888,938,676.79 - Step 5: Solve for x
x = 92,888,938,676.79/331,881.34 - Step 6: Final answer
x = 279,885.99
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1.5x scale
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.