Finding the Fourth Proportional to 380,659.18, 525,288.99 and 210,883.18
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Solution
The fourth proportional to 380,659.18, 525,288.99 and 210,883.18 is: 291,007.33
Step by Step Solution
- Step 1: Write the proportion equation
380,659.18 : 525,288.99 = 210,883.18 : x - Step 2: Convert to fraction form
380,659.18/525,288.99 = 210,883.18/x - Step 3: Cross multiply
380,659.18x = 525,288.99 × 210,883.18 - Step 4: Simplify right side
380,659.18x = 110,774,612,630.19 - Step 5: Solve for x
x = 110,774,612,630.19/380,659.18 - Step 6: Final answer
x = 291,007.33
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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.