Finding the Fourth Proportional to 421,347.98, 581,460.28 and 230,361.42
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Solution
The fourth proportional to 421,347.98, 581,460.28 and 230,361.42 is: 317,898.80
Step by Step Solution
- Step 1: Write the proportion equation
421,347.98 : 581,460.28 = 230,361.42 : x - Step 2: Convert to fraction form
421,347.98/581,460.28 = 230,361.42/x - Step 3: Cross multiply
421,347.98x = 581,460.28 × 230,361.42 - Step 4: Simplify right side
421,347.98x = 133,946,015,774.40 - Step 5: Solve for x
x = 133,946,015,774.40/421,347.98 - Step 6: Final answer
x = 317,898.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.