Finding the Fourth Proportional to 420,696.13, 631,044.19 and 125,208.13
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Solution
The fourth proportional to 420,696.13, 631,044.19 and 125,208.13 is: 187,812.19
Step by Step Solution
- Step 1: Write the proportion equation
420,696.13 : 631,044.19 = 125,208.13 : x - Step 2: Convert to fraction form
420,696.13/631,044.19 = 125,208.13/x - Step 3: Cross multiply
420,696.13x = 631,044.19 × 125,208.13 - Step 4: Simplify right side
420,696.13x = 79,011,859,822.04 - Step 5: Solve for x
x = 79,011,859,822.04/420,696.13 - Step 6: Final answer
x = 187,812.19
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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.