Finding the Fourth Proportional to 242,215.80, 363,323.70 and 137,239.80
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Solution
The fourth proportional to 242,215.80, 363,323.70 and 137,239.80 is: 205,859.70
Step by Step Solution
- Step 1: Write the proportion equation
242,215.80 : 363,323.70 = 137,239.80 : x - Step 2: Convert to fraction form
242,215.80/363,323.70 = 137,239.80/x - Step 3: Cross multiply
242,215.80x = 363,323.70 × 137,239.80 - Step 4: Simplify right side
242,215.80x = 49,862,471,923.26 - Step 5: Solve for x
x = 49,862,471,923.26/242,215.80 - Step 6: Final answer
x = 205,859.70
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1.5x scale
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.