Finding the Fourth Proportional to 372,919.13, 559,378.70 and 123,601.13
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Solution
The fourth proportional to 372,919.13, 559,378.70 and 123,601.13 is: 185,401.70
Step by Step Solution
- Step 1: Write the proportion equation
372,919.13 : 559,378.70 = 123,601.13 : x - Step 2: Convert to fraction form
372,919.13/559,378.70 = 123,601.13/x - Step 3: Cross multiply
372,919.13x = 559,378.70 × 123,601.13 - Step 4: Simplify right side
372,919.13x = 69,139,839,417.93 - Step 5: Solve for x
x = 69,139,839,417.93/372,919.13 - Step 6: Final answer
x = 185,401.70
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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.