Finding the Fourth Proportional to 211,326.53, 291,660.51 and 130,779.99
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Solution
The fourth proportional to 211,326.53, 291,660.51 and 130,779.99 is: 180,494.89
Step by Step Solution
- Step 1: Write the proportion equation
211,326.53 : 291,660.51 = 130,779.99 : x - Step 2: Convert to fraction form
211,326.53/291,660.51 = 130,779.99/x - Step 3: Cross multiply
211,326.53x = 291,660.51 × 130,779.99 - Step 4: Simplify right side
211,326.53x = 38,143,358,581.19 - Step 5: Solve for x
x = 38,143,358,581.19/211,326.53 - Step 6: Final answer
x = 180,494.89
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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.