Finding the Fourth Proportional to 297,832.72, 411,009.15 and 161,866.99
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Solution
The fourth proportional to 297,832.72, 411,009.15 and 161,866.99 is: 223,376.45
Step by Step Solution
- Step 1: Write the proportion equation
297,832.72 : 411,009.15 = 161,866.99 : x - Step 2: Convert to fraction form
297,832.72/411,009.15 = 161,866.99/x - Step 3: Cross multiply
297,832.72x = 411,009.15 × 161,866.99 - Step 4: Simplify right side
297,832.72x = 66,528,814,261.74 - Step 5: Solve for x
x = 66,528,814,261.74/297,832.72 - Step 6: Final answer
x = 223,376.45
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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.