Finding the Fourth Proportional to 240,467.20, 331,916.16 and 155,582.08
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Solution
The fourth proportional to 240,467.20, 331,916.16 and 155,582.08 is: 214,749.48
Step by Step Solution
- Step 1: Write the proportion equation
240,467.20 : 331,916.16 = 155,582.08 : x - Step 2: Convert to fraction form
240,467.20/331,916.16 = 155,582.08/x - Step 3: Cross multiply
240,467.20x = 331,916.16 × 155,582.08 - Step 4: Simplify right side
240,467.20x = 51,640,206,558.41 - Step 5: Solve for x
x = 51,640,206,558.41/240,467.20 - Step 6: Final answer
x = 214,749.48
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1.5x scale
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.