Finding the Fourth Proportional to 420,865.26, 631,549.42 and 154,652.69
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Solution
The fourth proportional to 420,865.26, 631,549.42 and 154,652.69 is: 232,071.46
Step by Step Solution
- Step 1: Write the proportion equation
420,865.26 : 631,549.42 = 154,652.69 : x - Step 2: Convert to fraction form
420,865.26/631,549.42 = 154,652.69/x - Step 3: Cross multiply
420,865.26x = 631,549.42 × 154,652.69 - Step 4: Simplify right side
420,865.26x = 97,670,816,670.94 - Step 5: Solve for x
x = 97,670,816,670.94/420,865.26 - Step 6: Final answer
x = 232,071.46
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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.