Finding the Fourth Proportional to 211,329.53, 291,664.65 and 130,782.99
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Solution
The fourth proportional to 211,329.53, 291,664.65 and 130,782.99 is: 180,499.03
Step by Step Solution
- Step 1: Write the proportion equation
211,329.53 : 291,664.65 = 130,782.99 : x - Step 2: Convert to fraction form
211,329.53/291,664.65 = 130,782.99/x - Step 3: Cross multiply
211,329.53x = 291,664.65 × 130,782.99 - Step 4: Simplify right side
211,329.53x = 38,144,775,004.30 - Step 5: Solve for x
x = 38,144,775,004.30/211,329.53 - Step 6: Final answer
x = 180,499.03
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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.