Finding the Fourth Proportional to 330,497.70, 495,746.55 and 81,179.70
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Solution
The fourth proportional to 330,497.70, 495,746.55 and 81,179.70 is: 121,769.55
Step by Step Solution
- Step 1: Write the proportion equation
330,497.70 : 495,746.55 = 81,179.70 : x - Step 2: Convert to fraction form
330,497.70/495,746.55 = 81,179.70/x - Step 3: Cross multiply
330,497.70x = 495,746.55 × 81,179.70 - Step 4: Simplify right side
330,497.70x = 40,244,556,205.04 - Step 5: Solve for x
x = 40,244,556,205.04/330,497.70 - Step 6: Final answer
x = 121,769.55
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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.