Finding the Fourth Proportional to 211,326.41, 291,660.35 and 130,779.87
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Solution
The fourth proportional to 211,326.41, 291,660.35 and 130,779.87 is: 180,494.73
Step by Step Solution
- Step 1: Write the proportion equation
211,326.41 : 291,660.35 = 130,779.87 : x - Step 2: Convert to fraction form
211,326.41/291,660.35 = 130,779.87/x - Step 3: Cross multiply
211,326.41x = 291,660.35 × 130,779.87 - Step 4: Simplify right side
211,326.41x = 38,143,302,657.15 - Step 5: Solve for x
x = 38,143,302,657.15/211,326.41 - Step 6: Final answer
x = 180,494.73
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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.