Finding the Fourth Proportional to 210,908.99, 291,045.07 and 115,419.71
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Solution
The fourth proportional to 210,908.99, 291,045.07 and 115,419.71 is: 159,274.09
Step by Step Solution
- Step 1: Write the proportion equation
210,908.99 : 291,045.07 = 115,419.71 : x - Step 2: Convert to fraction form
210,908.99/291,045.07 = 115,419.71/x - Step 3: Cross multiply
210,908.99x = 291,045.07 × 115,419.71 - Step 4: Simplify right side
210,908.99x = 33,592,337,576.33 - Step 5: Solve for x
x = 33,592,337,576.33/210,908.99 - Step 6: Final answer
x = 159,274.09
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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.