Finding the Fourth Proportional to 313,107.68, 432,129.29 and 175,339.05
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Solution
The fourth proportional to 313,107.68, 432,129.29 and 175,339.05 is: 241,990.68
Step by Step Solution
- Step 1: Write the proportion equation
313,107.68 : 432,129.29 = 175,339.05 : x - Step 2: Convert to fraction form
313,107.68/432,129.29 = 175,339.05/x - Step 3: Cross multiply
313,107.68x = 432,129.29 × 175,339.05 - Step 4: Simplify right side
313,107.68x = 75,769,138,309.08 - Step 5: Solve for x
x = 75,769,138,309.08/313,107.68 - Step 6: Final answer
x = 241,990.68
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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.