Finding the Fourth Proportional to 538,778.75, 808,172.18 and 239,178.79
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Solution
The fourth proportional to 538,778.75, 808,172.18 and 239,178.79 is: 358,769.98
Step by Step Solution
- Step 1: Write the proportion equation
538,778.75 : 808,172.18 = 239,178.79 : x - Step 2: Convert to fraction form
538,778.75/808,172.18 = 239,178.79/x - Step 3: Cross multiply
538,778.75x = 808,172.18 × 239,178.79 - Step 4: Simplify right side
538,778.75x = 193,297,638,887.31 - Step 5: Solve for x
x = 193,297,638,887.31/538,778.75 - Step 6: Final answer
x = 358,769.98
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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.