Finding the Fourth Proportional to 393,807.12, 590,682.12 and 153,875.92
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Solution
The fourth proportional to 393,807.12, 590,682.12 and 153,875.92 is: 230,802.72
Step by Step Solution
- Step 1: Write the proportion equation
393,807.12 : 590,682.12 = 153,875.92 : x - Step 2: Convert to fraction form
393,807.12/590,682.12 = 153,875.92/x - Step 3: Cross multiply
393,807.12x = 590,682.12 × 153,875.92 - Step 4: Simplify right side
393,807.12x = 90,891,754,642.55 - Step 5: Solve for x
x = 90,891,754,642.55/393,807.12 - Step 6: Final answer
x = 230,802.72
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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.