Finding the Fourth Proportional to 266,078.13, 398,905.26 and 153,630.81
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Solution
The fourth proportional to 266,078.13, 398,905.26 and 153,630.81 is: 230,323.85
Step by Step Solution
- Step 1: Write the proportion equation
266,078.13 : 398,905.26 = 153,630.81 : x - Step 2: Convert to fraction form
266,078.13/398,905.26 = 153,630.81/x - Step 3: Cross multiply
266,078.13x = 398,905.26 × 153,630.81 - Step 4: Simplify right side
266,078.13x = 61,284,138,207.06 - Step 5: Solve for x
x = 61,284,138,207.06/266,078.13 - Step 6: Final answer
x = 230,323.85
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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.