Finding the Fourth Proportional to 282,798.08, 390,261.60 and 155,475.84
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Solution
The fourth proportional to 282,798.08, 390,261.60 and 155,475.84 is: 214,556.80
Step by Step Solution
- Step 1: Write the proportion equation
282,798.08 : 390,261.60 = 155,475.84 : x - Step 2: Convert to fraction form
282,798.08/390,261.60 = 155,475.84/x - Step 3: Cross multiply
282,798.08x = 390,261.60 × 155,475.84 - Step 4: Simplify right side
282,798.08x = 60,676,250,079.74 - Step 5: Solve for x
x = 60,676,250,079.74/282,798.08 - Step 6: Final answer
x = 214,556.80
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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.