Finding the Fourth Proportional to 409,564.20, 614,236.95 and 143,296.95
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Solution
The fourth proportional to 409,564.20, 614,236.95 and 143,296.95 is: 214,907.17
Step by Step Solution
- Step 1: Write the proportion equation
409,564.20 : 614,236.95 = 143,296.95 : x - Step 2: Convert to fraction form
409,564.20/614,236.95 = 143,296.95/x - Step 3: Cross multiply
409,564.20x = 614,236.95 × 143,296.95 - Step 4: Simplify right side
409,564.20x = 88,018,281,512.30 - Step 5: Solve for x
x = 88,018,281,512.30/409,564.20 - Step 6: Final answer
x = 214,907.17
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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.