Finding the Fourth Proportional to 286,133.99, 394,873.58 and 158,818.19
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Solution
The fourth proportional to 286,133.99, 394,873.58 and 158,818.19 is: 219,173.91
Step by Step Solution
- Step 1: Write the proportion equation
286,133.99 : 394,873.58 = 158,818.19 : x - Step 2: Convert to fraction form
286,133.99/394,873.58 = 158,818.19/x - Step 3: Cross multiply
286,133.99x = 394,873.58 × 158,818.19 - Step 4: Simplify right side
286,133.99x = 62,713,105,677.10 - Step 5: Solve for x
x = 62,713,105,677.10/286,133.99 - Step 6: Final answer
x = 219,173.91
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1.5x scale
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.