Finding the Fourth Proportional to 291,968.13, 402,914.92 and 157,832.13
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Solution
The fourth proportional to 291,968.13, 402,914.92 and 157,832.13 is: 217,807.75
Step by Step Solution
- Step 1: Write the proportion equation
291,968.13 : 402,914.92 = 157,832.13 : x - Step 2: Convert to fraction form
291,968.13/402,914.92 = 157,832.13/x - Step 3: Cross multiply
291,968.13x = 402,914.92 × 157,832.13 - Step 4: Simplify right side
291,968.13x = 63,592,920,032.38 - Step 5: Solve for x
x = 63,592,920,032.38/291,968.13 - Step 6: Final answer
x = 217,807.75
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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.