Finding the Fourth Proportional to 286,717.36, 430,303.56 and 153,695.92
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Solution
The fourth proportional to 286,717.36, 430,303.56 and 153,695.92 is: 230,665.84
Step by Step Solution
- Step 1: Write the proportion equation
286,717.36 : 430,303.56 = 153,695.92 : x - Step 2: Convert to fraction form
286,717.36/430,303.56 = 153,695.92/x - Step 3: Cross multiply
286,717.36x = 430,303.56 × 153,695.92 - Step 4: Simplify right side
286,717.36x = 66,135,901,533.48 - Step 5: Solve for x
x = 66,135,901,533.48/286,717.36 - Step 6: Final answer
x = 230,665.84
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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.