Finding the Fourth Proportional to 251,957.68, 347,701.52 and 138,780.42
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Solution
The fourth proportional to 251,957.68, 347,701.52 and 138,780.42 is: 191,516.94
Step by Step Solution
- Step 1: Write the proportion equation
251,957.68 : 347,701.52 = 138,780.42 : x - Step 2: Convert to fraction form
251,957.68/347,701.52 = 138,780.42/x - Step 3: Cross multiply
251,957.68x = 347,701.52 × 138,780.42 - Step 4: Simplify right side
251,957.68x = 48,254,162,980.24 - Step 5: Solve for x
x = 48,254,162,980.24/251,957.68 - Step 6: Final answer
x = 191,516.94
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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.