Finding the Fourth Proportional to 153,578.28, 230,398.72 and 87,048.12
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Solution
The fourth proportional to 153,578.28, 230,398.72 and 87,048.12 is: 130,589.92
Step by Step Solution
- Step 1: Write the proportion equation
153,578.28 : 230,398.72 = 87,048.12 : x - Step 2: Convert to fraction form
153,578.28/230,398.72 = 87,048.12/x - Step 3: Cross multiply
153,578.28x = 230,398.72 × 87,048.12 - Step 4: Simplify right side
153,578.28x = 20,055,775,426.41 - Step 5: Solve for x
x = 20,055,775,426.41/153,578.28 - Step 6: Final answer
x = 130,589.92
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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.