Finding the Fourth Proportional to 381,438.14, 526,386.67 and 211,672.26
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Solution
The fourth proportional to 381,438.14, 526,386.67 and 211,672.26 is: 292,108.85
Step by Step Solution
- Step 1: Write the proportion equation
381,438.14 : 526,386.67 = 211,672.26 : x - Step 2: Convert to fraction form
381,438.14/526,386.67 = 211,672.26/x - Step 3: Cross multiply
381,438.14x = 526,386.67 × 211,672.26 - Step 4: Simplify right side
381,438.14x = 111,421,455,543.59 - Step 5: Solve for x
x = 111,421,455,543.59/381,438.14 - Step 6: Final answer
x = 292,108.85
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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.