Finding the Fourth Proportional to 387,671.60, 581,680.20 and 177,201.20
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Solution
The fourth proportional to 387,671.60, 581,680.20 and 177,201.20 is: 265,880.79
Step by Step Solution
- Step 1: Write the proportion equation
387,671.60 : 581,680.20 = 177,201.20 : x - Step 2: Convert to fraction form
387,671.60/581,680.20 = 177,201.20/x - Step 3: Cross multiply
387,671.60x = 581,680.20 × 177,201.20 - Step 4: Simplify right side
387,671.60x = 103,074,429,456.24 - Step 5: Solve for x
x = 103,074,429,456.24/387,671.60 - Step 6: Final answer
x = 265,880.79
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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.