Finding the Fourth Proportional to 291,457.36, 437,010.84 and 197,678.80
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Solution
The fourth proportional to 291,457.36, 437,010.84 and 197,678.80 is: 296,399.37
Step by Step Solution
- Step 1: Write the proportion equation
291,457.36 : 437,010.84 = 197,678.80 : x - Step 2: Convert to fraction form
291,457.36/437,010.84 = 197,678.80/x - Step 3: Cross multiply
291,457.36x = 437,010.84 × 197,678.80 - Step 4: Simplify right side
291,457.36x = 86,387,778,438.19 - Step 5: Solve for x
x = 86,387,778,438.19/291,457.36 - Step 6: Final answer
x = 296,399.37
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.