Finding the Fourth Proportional to 153,631.28, 230,466.36 and 74,678.96
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Solution
The fourth proportional to 153,631.28, 230,466.36 and 74,678.96 is: 112,027.89
Step by Step Solution
- Step 1: Write the proportion equation
153,631.28 : 230,466.36 = 74,678.96 : x - Step 2: Convert to fraction form
153,631.28/230,466.36 = 74,678.96/x - Step 3: Cross multiply
153,631.28x = 230,466.36 × 74,678.96 - Step 4: Simplify right side
153,631.28x = 17,210,988,079.79 - Step 5: Solve for x
x = 17,210,988,079.79/153,631.28 - Step 6: Final answer
x = 112,027.89
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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.