Finding the Fourth Proportional to 245,627.20, 368,440.80 and 133,652.80
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Solution
The fourth proportional to 245,627.20, 368,440.80 and 133,652.80 is: 200,479.20
Step by Step Solution
- Step 1: Write the proportion equation
245,627.20 : 368,440.80 = 133,652.80 : x - Step 2: Convert to fraction form
245,627.20/368,440.80 = 133,652.80/x - Step 3: Cross multiply
245,627.20x = 368,440.80 × 133,652.80 - Step 4: Simplify right side
245,627.20x = 49,243,144,554.24 - Step 5: Solve for x
x = 49,243,144,554.24/245,627.20 - Step 6: Final answer
x = 200,479.20
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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.