Finding the Fourth Proportional to 251,036.50, 346,432.80 and 137,861.68
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Solution
The fourth proportional to 251,036.50, 346,432.80 and 137,861.68 is: 190,250.45
Step by Step Solution
- Step 1: Write the proportion equation
251,036.50 : 346,432.80 = 137,861.68 : x - Step 2: Convert to fraction form
251,036.50/346,432.80 = 137,861.68/x - Step 3: Cross multiply
251,036.50x = 346,432.80 × 137,861.68 - Step 4: Simplify right side
251,036.50x = 47,759,807,815.10 - Step 5: Solve for x
x = 47,759,807,815.10/251,036.50 - Step 6: Final answer
x = 190,250.45
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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.