Finding the Fourth Proportional to 297,943.47, 411,157.08 and 161,980.80
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Solution
The fourth proportional to 297,943.47, 411,157.08 and 161,980.80 is: 223,530.84
Step by Step Solution
- Step 1: Write the proportion equation
297,943.47 : 411,157.08 = 161,980.80 : x - Step 2: Convert to fraction form
297,943.47/411,157.08 = 161,980.80/x - Step 3: Cross multiply
297,943.47x = 411,157.08 × 161,980.80 - Step 4: Simplify right side
297,943.47x = 66,599,552,744.06 - Step 5: Solve for x
x = 66,599,552,744.06/297,943.47 - Step 6: Final answer
x = 223,530.84
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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.