Finding the Fourth Proportional to 239,817.15, 330,953.68 and 136,445.65
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Solution
The fourth proportional to 239,817.15, 330,953.68 and 136,445.65 is: 188,298.41
Step by Step Solution
- Step 1: Write the proportion equation
239,817.15 : 330,953.68 = 136,445.65 : x - Step 2: Convert to fraction form
239,817.15/330,953.68 = 136,445.65/x - Step 3: Cross multiply
239,817.15x = 330,953.68 × 136,445.65 - Step 4: Simplify right side
239,817.15x = 45,157,188,332.72 - Step 5: Solve for x
x = 45,157,188,332.72/239,817.15 - Step 6: Final answer
x = 188,298.41
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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.