Finding the Fourth Proportional to 140,438.19, 210,558.87 and 51,680.19
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Solution
The fourth proportional to 140,438.19, 210,558.87 and 51,680.19 is: 77,484.07
Step by Step Solution
- Step 1: Write the proportion equation
140,438.19 : 210,558.87 = 51,680.19 : x - Step 2: Convert to fraction form
140,438.19/210,558.87 = 51,680.19/x - Step 3: Cross multiply
140,438.19x = 210,558.87 × 51,680.19 - Step 4: Simplify right side
140,438.19x = 10,881,722,407.79 - Step 5: Solve for x
x = 10,881,722,407.79/140,438.19 - Step 6: Final answer
x = 77,484.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.