Finding the Fourth Proportional to 313,201.63, 432,219.41 and 169,961.68
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Solution
The fourth proportional to 313,201.63, 432,219.41 and 169,961.68 is: 234,547.75
Step by Step Solution
- Step 1: Write the proportion equation
313,201.63 : 432,219.41 = 169,961.68 : x - Step 2: Convert to fraction form
313,201.63/432,219.41 = 169,961.68/x - Step 3: Cross multiply
313,201.63x = 432,219.41 × 169,961.68 - Step 4: Simplify right side
313,201.63x = 73,460,737,052.21 - Step 5: Solve for x
x = 73,460,737,052.21/313,201.63 - Step 6: Final answer
x = 234,547.75
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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.