Finding the Fourth Proportional to 155,315.99, 232,632.49 and 128,356.43
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Solution
The fourth proportional to 155,315.99, 232,632.49 and 128,356.43 is: 192,252.43
Step by Step Solution
- Step 1: Write the proportion equation
155,315.99 : 232,632.49 = 128,356.43 : x - Step 2: Convert to fraction form
155,315.99/232,632.49 = 128,356.43/x - Step 3: Cross multiply
155,315.99x = 232,632.49 × 128,356.43 - Step 4: Simplify right side
155,315.99x = 29,859,875,918.41 - Step 5: Solve for x
x = 29,859,875,918.41/155,315.99 - Step 6: Final answer
x = 192,252.43
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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.