Finding the Fourth Proportional to 238,778.99, 329,513.16 and 131,346.66
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Solution
The fourth proportional to 238,778.99, 329,513.16 and 131,346.66 is: 181,257.38
Step by Step Solution
- Step 1: Write the proportion equation
238,778.99 : 329,513.16 = 131,346.66 : x - Step 2: Convert to fraction form
238,778.99/329,513.16 = 131,346.66/x - Step 3: Cross multiply
238,778.99x = 329,513.16 × 131,346.66 - Step 4: Simplify right side
238,778.99x = 43,280,452,992.05 - Step 5: Solve for x
x = 43,280,452,992.05/238,778.99 - Step 6: Final answer
x = 181,257.38
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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.