Finding the Fourth Proportional to 286,691.24, 430,034.40 and 73,458.74
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Solution
The fourth proportional to 286,691.24, 430,034.40 and 73,458.74 is: 110,187.48
Step by Step Solution
- Step 1: Write the proportion equation
286,691.24 : 430,034.40 = 73,458.74 : x - Step 2: Convert to fraction form
286,691.24/430,034.40 = 73,458.74/x - Step 3: Cross multiply
286,691.24x = 430,034.40 × 73,458.74 - Step 4: Simplify right side
286,691.24x = 31,589,785,180.66 - Step 5: Solve for x
x = 31,589,785,180.66/286,691.24 - Step 6: Final answer
x = 110,187.48
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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.