Finding the Fourth Proportional to 316,526.34, 436,816.20 and 173,299.68
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Solution
The fourth proportional to 316,526.34, 436,816.20 and 173,299.68 is: 239,158.95
Step by Step Solution
- Step 1: Write the proportion equation
316,526.34 : 436,816.20 = 173,299.68 : x - Step 2: Convert to fraction form
316,526.34/436,816.20 = 173,299.68/x - Step 3: Cross multiply
316,526.34x = 436,816.20 × 173,299.68 - Step 4: Simplify right side
316,526.34x = 75,700,107,678.82 - Step 5: Solve for x
x = 75,700,107,678.82/316,526.34 - Step 6: Final answer
x = 239,158.95
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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.