Finding the Fourth Proportional to 421,118.44, 581,246.70 and 239,937.28
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Solution
The fourth proportional to 421,118.44, 581,246.70 and 239,937.28 is: 331,172.28
Step by Step Solution
- Step 1: Write the proportion equation
421,118.44 : 581,246.70 = 239,937.28 : x - Step 2: Convert to fraction form
421,118.44/581,246.70 = 239,937.28/x - Step 3: Cross multiply
421,118.44x = 581,246.70 × 239,937.28 - Step 4: Simplify right side
421,118.44x = 139,462,752,206.98 - Step 5: Solve for x
x = 139,462,752,206.98/421,118.44 - Step 6: Final answer
x = 331,172.28
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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.