Finding the Fourth Proportional to 286,162.99, 394,909.56 and 157,113.36
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Solution
The fourth proportional to 286,162.99, 394,909.56 and 157,113.36 is: 216,818.98
Step by Step Solution
- Step 1: Write the proportion equation
286,162.99 : 394,909.56 = 157,113.36 : x - Step 2: Convert to fraction form
286,162.99/394,909.56 = 157,113.36/x - Step 3: Cross multiply
286,162.99x = 394,909.56 × 157,113.36 - Step 4: Simplify right side
286,162.99x = 62,045,566,732.41 - Step 5: Solve for x
x = 62,045,566,732.41/286,162.99 - Step 6: Final answer
x = 216,818.98
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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.