Finding the Fourth Proportional to 421,283.02, 581,374.43 and 239,992.26
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Solution
The fourth proportional to 421,283.02, 581,374.43 and 239,992.26 is: 331,191.52
Step by Step Solution
- Step 1: Write the proportion equation
421,283.02 : 581,374.43 = 239,992.26 : x - Step 2: Convert to fraction form
421,283.02/581,374.43 = 239,992.26/x - Step 3: Cross multiply
421,283.02x = 581,374.43 × 239,992.26 - Step 4: Simplify right side
421,283.02x = 139,525,363,961.89 - Step 5: Solve for x
x = 139,525,363,961.89/421,283.02 - Step 6: Final answer
x = 331,191.52
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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.