Finding the Fourth Proportional to 647,743.70, 971,323.95 and 248,251.70
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Solution
The fourth proportional to 647,743.70, 971,323.95 and 248,251.70 is: 372,265.79
Step by Step Solution
- Step 1: Write the proportion equation
647,743.70 : 971,323.95 = 248,251.70 : x - Step 2: Convert to fraction form
647,743.70/971,323.95 = 248,251.70/x - Step 3: Cross multiply
647,743.70x = 971,323.95 × 248,251.70 - Step 4: Simplify right side
647,743.70x = 241,132,821,838.22 - Step 5: Solve for x
x = 241,132,821,838.22/647,743.70 - Step 6: Final answer
x = 372,265.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.