Finding the Fourth Proportional to 210,879.10, 316,318.65 and 201,778.30
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Solution
The fourth proportional to 210,879.10, 316,318.65 and 201,778.30 is: 302,667.45
Step by Step Solution
- Step 1: Write the proportion equation
210,879.10 : 316,318.65 = 201,778.30 : x - Step 2: Convert to fraction form
210,879.10/316,318.65 = 201,778.30/x - Step 3: Cross multiply
210,879.10x = 316,318.65 × 201,778.30 - Step 4: Simplify right side
210,879.10x = 63,826,239,455.30 - Step 5: Solve for x
x = 63,826,239,455.30/210,879.10 - Step 6: Final answer
x = 302,667.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.