Finding the Fourth Proportional to 280,262.94, 386,771.08 and 152,946.74
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Solution
The fourth proportional to 280,262.94, 386,771.08 and 152,946.74 is: 211,070.99
Step by Step Solution
- Step 1: Write the proportion equation
280,262.94 : 386,771.08 = 152,946.74 : x - Step 2: Convert to fraction form
280,262.94/386,771.08 = 152,946.74/x - Step 3: Cross multiply
280,262.94x = 386,771.08 × 152,946.74 - Step 4: Simplify right side
280,262.94x = 59,155,375,812.28 - Step 5: Solve for x
x = 59,155,375,812.28/280,262.94 - Step 6: Final answer
x = 211,070.99
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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.