Finding the Fourth Proportional to 343,885.80, 515,828.70 and 265,153.80
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Solution
The fourth proportional to 343,885.80, 515,828.70 and 265,153.80 is: 397,730.70
Step by Step Solution
- Step 1: Write the proportion equation
343,885.80 : 515,828.70 = 265,153.80 : x - Step 2: Convert to fraction form
343,885.80/515,828.70 = 265,153.80/x - Step 3: Cross multiply
343,885.80x = 515,828.70 × 265,153.80 - Step 4: Simplify right side
343,885.80x = 136,773,939,954.06 - Step 5: Solve for x
x = 136,773,939,954.06/343,885.80 - Step 6: Final answer
x = 397,730.70
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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.