Finding the Fourth Proportional to 421,572.99, 632,360.57 and 172,254.99
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Solution
The fourth proportional to 421,572.99, 632,360.57 and 172,254.99 is: 258,382.93
Step by Step Solution
- Step 1: Write the proportion equation
421,572.99 : 632,360.57 = 172,254.99 : x - Step 2: Convert to fraction form
421,572.99/632,360.57 = 172,254.99/x - Step 3: Cross multiply
421,572.99x = 632,360.57 × 172,254.99 - Step 4: Simplify right side
421,572.99x = 108,927,262,800.47 - Step 5: Solve for x
x = 108,927,262,800.47/421,572.99 - Step 6: Final answer
x = 258,382.93
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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.