Finding the Fourth Proportional to 309,289.06, 426,816.30 and 283,897.99
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Solution
The fourth proportional to 309,289.06, 426,816.30 and 283,897.99 is: 391,776.84
Step by Step Solution
- Step 1: Write the proportion equation
309,289.06 : 426,816.30 = 283,897.99 : x - Step 2: Convert to fraction form
309,289.06/426,816.30 = 283,897.99/x - Step 3: Cross multiply
309,289.06x = 426,816.30 × 283,897.99 - Step 4: Simplify right side
309,289.06x = 121,172,289,669.24 - Step 5: Solve for x
x = 121,172,289,669.24/309,289.06 - Step 6: Final answer
x = 391,776.84
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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.