Finding the Fourth Proportional to 408,394.48, 563,501.79 and 238,595.80
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Solution
The fourth proportional to 408,394.48, 563,501.79 and 238,595.80 is: 329,213.95
Step by Step Solution
- Step 1: Write the proportion equation
408,394.48 : 563,501.79 = 238,595.80 : x - Step 2: Convert to fraction form
408,394.48/563,501.79 = 238,595.80/x - Step 3: Cross multiply
408,394.48x = 563,501.79 × 238,595.80 - Step 4: Simplify right side
408,394.48x = 134,449,156,375.99 - Step 5: Solve for x
x = 134,449,156,375.99/408,394.48 - Step 6: Final answer
x = 329,213.95
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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.