Finding the Fourth Proportional to 353,857.41, 530,313.21 and 129,006.63
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Solution
The fourth proportional to 353,857.41, 530,313.21 and 129,006.63 is: 193,337.54
Step by Step Solution
- Step 1: Write the proportion equation
353,857.41 : 530,313.21 = 129,006.63 : x - Step 2: Convert to fraction form
353,857.41/530,313.21 = 129,006.63/x - Step 3: Cross multiply
353,857.41x = 530,313.21 × 129,006.63 - Step 4: Simplify right side
353,857.41x = 68,413,920,066.58 - Step 5: Solve for x
x = 68,413,920,066.58/353,857.41 - Step 6: Final answer
x = 193,337.54
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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.