Finding the Fourth Proportional to 239,315.08, 330,256.11 and 137,332.42
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Solution
The fourth proportional to 239,315.08, 330,256.11 and 137,332.42 is: 189,519.49
Step by Step Solution
- Step 1: Write the proportion equation
239,315.08 : 330,256.11 = 137,332.42 : x - Step 2: Convert to fraction form
239,315.08/330,256.11 = 137,332.42/x - Step 3: Cross multiply
239,315.08x = 330,256.11 × 137,332.42 - Step 4: Simplify right side
239,315.08x = 45,354,870,806.09 - Step 5: Solve for x
x = 45,354,870,806.09/239,315.08 - Step 6: Final answer
x = 189,519.49
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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.