Finding the Fourth Proportional to 230,889.48, 318,624.44 and 128,916.68
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Solution
The fourth proportional to 230,889.48, 318,624.44 and 128,916.68 is: 177,903.32
Step by Step Solution
- Step 1: Write the proportion equation
230,889.48 : 318,624.44 = 128,916.68 : x - Step 2: Convert to fraction form
230,889.48/318,624.44 = 128,916.68/x - Step 3: Cross multiply
230,889.48x = 318,624.44 × 128,916.68 - Step 4: Simplify right side
230,889.48x = 41,076,004,971.66 - Step 5: Solve for x
x = 41,076,004,971.66/230,889.48 - Step 6: Final answer
x = 177,903.32
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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.