Finding the Fourth Proportional to 250,809.41, 346,126.97 and 137,636.21
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Solution
The fourth proportional to 250,809.41, 346,126.97 and 137,636.21 is: 189,943.45
Step by Step Solution
- Step 1: Write the proportion equation
250,809.41 : 346,126.97 = 137,636.21 : x - Step 2: Convert to fraction form
250,809.41/346,126.97 = 137,636.21/x - Step 3: Cross multiply
250,809.41x = 346,126.97 × 137,636.21 - Step 4: Simplify right side
250,809.41x = 47,639,604,329.58 - Step 5: Solve for x
x = 47,639,604,329.58/250,809.41 - Step 6: Final answer
x = 189,943.45
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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.