Finding the Fourth Proportional to 425,425.86, 637,913.07 and 125,865.18
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Solution
The fourth proportional to 425,425.86, 637,913.07 and 125,865.18 is: 188,730.99
Step by Step Solution
- Step 1: Write the proportion equation
425,425.86 : 637,913.07 = 125,865.18 : x - Step 2: Convert to fraction form
425,425.86/637,913.07 = 125,865.18/x - Step 3: Cross multiply
425,425.86x = 637,913.07 × 125,865.18 - Step 4: Simplify right side
425,425.86x = 80,291,043,379.90 - Step 5: Solve for x
x = 80,291,043,379.90/425,425.86 - Step 6: Final answer
x = 188,730.99
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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.