Finding the Fourth Proportional to 425,343.48, 638,108.64 and 125,800.71
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Solution
The fourth proportional to 425,343.48, 638,108.64 and 125,800.71 is: 188,728.70
Step by Step Solution
- Step 1: Write the proportion equation
425,343.48 : 638,108.64 = 125,800.71 : x - Step 2: Convert to fraction form
425,343.48/638,108.64 = 125,800.71/x - Step 3: Cross multiply
425,343.48x = 638,108.64 × 125,800.71 - Step 4: Simplify right side
425,343.48x = 80,274,519,969.13 - Step 5: Solve for x
x = 80,274,519,969.13/425,343.48 - Step 6: Final answer
x = 188,728.70
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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.