Finding the Fourth Proportional to 239,246.86, 330,168.12 and 137,290.99
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Solution
The fourth proportional to 239,246.86, 330,168.12 and 137,290.99 is: 189,465.84
Step by Step Solution
- Step 1: Write the proportion equation
239,246.86 : 330,168.12 = 137,290.99 : x - Step 2: Convert to fraction form
239,246.86/330,168.12 = 137,290.99/x - Step 3: Cross multiply
239,246.86x = 330,168.12 × 137,290.99 - Step 4: Simplify right side
239,246.86x = 45,329,108,061.24 - Step 5: Solve for x
x = 45,329,108,061.24/239,246.86 - Step 6: Final answer
x = 189,465.84
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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.