Finding the Fourth Proportional to 230,360.36, 317,923.11 and 128,395.13
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Solution
The fourth proportional to 230,360.36, 317,923.11 and 128,395.13 is: 177,199.66
Step by Step Solution
- Step 1: Write the proportion equation
230,360.36 : 317,923.11 = 128,395.13 : x - Step 2: Convert to fraction form
230,360.36/317,923.11 = 128,395.13/x - Step 3: Cross multiply
230,360.36x = 317,923.11 × 128,395.13 - Step 4: Simplify right side
230,360.36x = 40,819,777,448.84 - Step 5: Solve for x
x = 40,819,777,448.84/230,360.36 - Step 6: Final answer
x = 177,199.66
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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.