Finding the Fourth Proportional to 212,115.52, 292,701.99 and 124,886.75
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Solution
The fourth proportional to 212,115.52, 292,701.99 and 124,886.75 is: 172,333.46
Step by Step Solution
- Step 1: Write the proportion equation
212,115.52 : 292,701.99 = 124,886.75 : x - Step 2: Convert to fraction form
212,115.52/292,701.99 = 124,886.75/x - Step 3: Cross multiply
212,115.52x = 292,701.99 × 124,886.75 - Step 4: Simplify right side
212,115.52x = 36,554,600,981.39 - Step 5: Solve for x
x = 36,554,600,981.39/212,115.52 - Step 6: Final answer
x = 172,333.46
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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.