Finding the Fourth Proportional to 313,108.81, 432,130.90 and 175,340.19
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Solution
The fourth proportional to 313,108.81, 432,130.90 and 175,340.19 is: 241,992.28
Step by Step Solution
- Step 1: Write the proportion equation
313,108.81 : 432,130.90 = 175,340.19 : x - Step 2: Convert to fraction form
313,108.81/432,130.90 = 175,340.19/x - Step 3: Cross multiply
313,108.81x = 432,130.90 × 175,340.19 - Step 4: Simplify right side
313,108.81x = 75,769,915,621.77 - Step 5: Solve for x
x = 75,769,915,621.77/313,108.81 - Step 6: Final answer
x = 241,992.28
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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.