Finding the Fourth Proportional to 151,317.08, 208,842.53 and 115,439.34
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Solution
The fourth proportional to 151,317.08, 208,842.53 and 115,439.34 is: 159,325.33
Step by Step Solution
- Step 1: Write the proportion equation
151,317.08 : 208,842.53 = 115,439.34 : x - Step 2: Convert to fraction form
151,317.08/208,842.53 = 115,439.34/x - Step 3: Cross multiply
151,317.08x = 208,842.53 × 115,439.34 - Step 4: Simplify right side
151,317.08x = 24,108,643,827.13 - Step 5: Solve for x
x = 24,108,643,827.13/151,317.08 - Step 6: Final answer
x = 159,325.33
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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.