Finding the Fourth Proportional to 280,358.58, 386,894.73 and 153,034.17
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Solution
The fourth proportional to 280,358.58, 386,894.73 and 153,034.17 is: 211,187.09
Step by Step Solution
- Step 1: Write the proportion equation
280,358.58 : 386,894.73 = 153,034.17 : x - Step 2: Convert to fraction form
280,358.58/386,894.73 = 153,034.17/x - Step 3: Cross multiply
280,358.58x = 386,894.73 × 153,034.17 - Step 4: Simplify right side
280,358.58x = 59,208,113,882.92 - Step 5: Solve for x
x = 59,208,113,882.92/280,358.58 - Step 6: Final answer
x = 211,187.09
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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.