Finding the Fourth Proportional to 212,779.11, 293,626.34 and 115,980.84
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Solution
The fourth proportional to 212,779.11, 293,626.34 and 115,980.84 is: 160,048.74
Step by Step Solution
- Step 1: Write the proportion equation
212,779.11 : 293,626.34 = 115,980.84 : x - Step 2: Convert to fraction form
212,779.11/293,626.34 = 115,980.84/x - Step 3: Cross multiply
212,779.11x = 293,626.34 × 115,980.84 - Step 4: Simplify right side
212,779.11x = 34,055,028,588.53 - Step 5: Solve for x
x = 34,055,028,588.53/212,779.11 - Step 6: Final answer
x = 160,048.74
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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.