Finding the Fourth Proportional to 381,331.28, 526,214.28 and 211,555.28
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Solution
The fourth proportional to 381,331.28, 526,214.28 and 211,555.28 is: 291,933.59
Step by Step Solution
- Step 1: Write the proportion equation
381,331.28 : 526,214.28 = 211,555.28 : x - Step 2: Convert to fraction form
381,331.28/526,214.28 = 211,555.28/x - Step 3: Cross multiply
381,331.28x = 526,214.28 × 211,555.28 - Step 4: Simplify right side
381,331.28x = 111,323,409,345.40 - Step 5: Solve for x
x = 111,323,409,345.40/381,331.28 - Step 6: Final answer
x = 291,933.59
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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.