Finding the Fourth Proportional to 470,187.70, 649,024.58 and 279,199.69
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Solution
The fourth proportional to 470,187.70, 649,024.58 and 279,199.69 is: 385,393.88
Step by Step Solution
- Step 1: Write the proportion equation
470,187.70 : 649,024.58 = 279,199.69 : x - Step 2: Convert to fraction form
470,187.70/649,024.58 = 279,199.69/x - Step 3: Cross multiply
470,187.70x = 649,024.58 × 279,199.69 - Step 4: Simplify right side
470,187.70x = 181,207,461,538.38 - Step 5: Solve for x
x = 181,207,461,538.38/470,187.70 - Step 6: Final answer
x = 385,393.88
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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.