Finding the Fourth Proportional to 394,890.80, 592,163.40 and 158,154.80
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Solution
The fourth proportional to 394,890.80, 592,163.40 and 158,154.80 is: 237,162.99
Step by Step Solution
- Step 1: Write the proportion equation
394,890.80 : 592,163.40 = 158,154.80 : x - Step 2: Convert to fraction form
394,890.80/592,163.40 = 158,154.80/x - Step 3: Cross multiply
394,890.80x = 592,163.40 × 158,154.80 - Step 4: Simplify right side
394,890.80x = 93,653,484,094.32 - Step 5: Solve for x
x = 93,653,484,094.32/394,890.80 - Step 6: Final answer
x = 237,162.99
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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.