Finding the Fourth Proportional to 239,479.27, 330,503.57 and 137,518.09
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Solution
The fourth proportional to 239,479.27, 330,503.57 and 137,518.09 is: 189,787.70
Step by Step Solution
- Step 1: Write the proportion equation
239,479.27 : 330,503.57 = 137,518.09 : x - Step 2: Convert to fraction form
239,479.27/330,503.57 = 137,518.09/x - Step 3: Cross multiply
239,479.27x = 330,503.57 × 137,518.09 - Step 4: Simplify right side
239,479.27x = 45,450,219,684.58 - Step 5: Solve for x
x = 45,450,219,684.58/239,479.27 - Step 6: Final answer
x = 189,787.70
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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.