Finding the Fourth Proportional to 272,765.26, 409,246.44 and 139,708.18
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Solution
The fourth proportional to 272,765.26, 409,246.44 and 139,708.18 is: 209,612.75
Step by Step Solution
- Step 1: Write the proportion equation
272,765.26 : 409,246.44 = 139,708.18 : x - Step 2: Convert to fraction form
272,765.26/409,246.44 = 139,708.18/x - Step 3: Cross multiply
272,765.26x = 409,246.44 × 139,708.18 - Step 4: Simplify right side
272,765.26x = 57,175,075,303.88 - Step 5: Solve for x
x = 57,175,075,303.88/272,765.26 - Step 6: Final answer
x = 209,612.75
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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.