Finding the Fourth Proportional to 425,634.20, 638,159.70 and 201,102.20
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Solution
The fourth proportional to 425,634.20, 638,159.70 and 201,102.20 is: 301,515.53
Step by Step Solution
- Step 1: Write the proportion equation
425,634.20 : 638,159.70 = 201,102.20 : x - Step 2: Convert to fraction form
425,634.20/638,159.70 = 201,102.20/x - Step 3: Cross multiply
425,634.20x = 638,159.70 × 201,102.20 - Step 4: Simplify right side
425,634.20x = 128,335,319,621.34 - Step 5: Solve for x
x = 128,335,319,621.34/425,634.20 - Step 6: Final answer
x = 301,515.53
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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.