Finding the Fourth Proportional to 425,400.76, 638,202.94 and 121,799.14
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Solution
The fourth proportional to 425,400.76, 638,202.94 and 121,799.14 is: 182,727.86
Step by Step Solution
- Step 1: Write the proportion equation
425,400.76 : 638,202.94 = 121,799.14 : x - Step 2: Convert to fraction form
425,400.76/638,202.94 = 121,799.14/x - Step 3: Cross multiply
425,400.76x = 638,202.94 × 121,799.14 - Step 4: Simplify right side
425,400.76x = 77,732,569,237.47 - Step 5: Solve for x
x = 77,732,569,237.47/425,400.76 - Step 6: Final answer
x = 182,727.86
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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.