Finding the Fourth Proportional to 400,292.48, 552,212.76 and 247,275.62
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Solution
The fourth proportional to 400,292.48, 552,212.76 and 247,275.62 is: 341,122.45
Step by Step Solution
- Step 1: Write the proportion equation
400,292.48 : 552,212.76 = 247,275.62 : x - Step 2: Convert to fraction form
400,292.48/552,212.76 = 247,275.62/x - Step 3: Cross multiply
400,292.48x = 552,212.76 × 247,275.62 - Step 4: Simplify right side
400,292.48x = 136,548,752,600.91 - Step 5: Solve for x
x = 136,548,752,600.91/400,292.48 - Step 6: Final answer
x = 341,122.45
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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.