Finding the Fourth Proportional to 393,967.18, 591,135.36 and 194,178.61
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Solution
The fourth proportional to 393,967.18, 591,135.36 and 194,178.61 is: 291,358.90
Step by Step Solution
- Step 1: Write the proportion equation
393,967.18 : 591,135.36 = 194,178.61 : x - Step 2: Convert to fraction form
393,967.18/591,135.36 = 194,178.61/x - Step 3: Cross multiply
393,967.18x = 591,135.36 × 194,178.61 - Step 4: Simplify right side
393,967.18x = 114,785,842,526.65 - Step 5: Solve for x
x = 114,785,842,526.65/393,967.18 - Step 6: Final answer
x = 291,358.90
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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.