Finding the Fourth Proportional to 320,972.99, 442,937.30 and 177,729.96
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Solution
The fourth proportional to 320,972.99, 442,937.30 and 177,729.96 is: 245,264.34
Step by Step Solution
- Step 1: Write the proportion equation
320,972.99 : 442,937.30 = 177,729.96 : x - Step 2: Convert to fraction form
320,972.99/442,937.30 = 177,729.96/x - Step 3: Cross multiply
320,972.99x = 442,937.30 × 177,729.96 - Step 4: Simplify right side
320,972.99x = 78,723,228,389.35 - Step 5: Solve for x
x = 78,723,228,389.35/320,972.99 - Step 6: Final answer
x = 245,264.34
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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.