Finding the Fourth Proportional to 381,866.16, 526,988.52 and 212,116.08
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Solution
The fourth proportional to 381,866.16, 526,988.52 and 212,116.08 is: 292,727.53
Step by Step Solution
- Step 1: Write the proportion equation
381,866.16 : 526,988.52 = 212,116.08 : x - Step 2: Convert to fraction form
381,866.16/526,988.52 = 212,116.08/x - Step 3: Cross multiply
381,866.16x = 526,988.52 × 212,116.08 - Step 4: Simplify right side
381,866.16x = 111,782,739,067.40 - Step 5: Solve for x
x = 111,782,739,067.40/381,866.16 - Step 6: Final answer
x = 292,727.53
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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.