Finding the Fourth Proportional to 313,458.13, 432,682.59 and 186,132.79
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Solution
The fourth proportional to 313,458.13, 432,682.59 and 186,132.79 is: 256,928.79
Step by Step Solution
- Step 1: Write the proportion equation
313,458.13 : 432,682.59 = 186,132.79 : x - Step 2: Convert to fraction form
313,458.13/432,682.59 = 186,132.79/x - Step 3: Cross multiply
313,458.13x = 432,682.59 × 186,132.79 - Step 4: Simplify right side
313,458.13x = 80,536,417,661.13 - Step 5: Solve for x
x = 80,536,417,661.13/313,458.13 - Step 6: Final answer
x = 256,928.79
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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.