Finding the Fourth Proportional to 368,571.86, 508,628.71 and 207,428.07
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Solution
The fourth proportional to 368,571.86, 508,628.71 and 207,428.07 is: 286,250.47
Step by Step Solution
- Step 1: Write the proportion equation
368,571.86 : 508,628.71 = 207,428.07 : x - Step 2: Convert to fraction form
368,571.86/508,628.71 = 207,428.07/x - Step 3: Cross multiply
368,571.86x = 508,628.71 × 207,428.07 - Step 4: Simplify right side
368,571.86x = 105,503,869,391.13 - Step 5: Solve for x
x = 105,503,869,391.13/368,571.86 - Step 6: Final answer
x = 286,250.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.