Finding the Fourth Proportional to 153,509.67, 229,925.52 and 100,278.09
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Solution
The fourth proportional to 153,509.67, 229,925.52 and 100,278.09 is: 150,195.70
Step by Step Solution
- Step 1: Write the proportion equation
153,509.67 : 229,925.52 = 100,278.09 : x - Step 2: Convert to fraction form
153,509.67/229,925.52 = 100,278.09/x - Step 3: Cross multiply
153,509.67x = 229,925.52 × 100,278.09 - Step 4: Simplify right side
153,509.67x = 23,056,491,987.86 - Step 5: Solve for x
x = 23,056,491,987.86/153,509.67 - Step 6: Final answer
x = 150,195.70
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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.