Finding the Fourth Proportional to 330,167.80, 495,251.70 and 212,069.80
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Solution
The fourth proportional to 330,167.80, 495,251.70 and 212,069.80 is: 318,104.70
Step by Step Solution
- Step 1: Write the proportion equation
330,167.80 : 495,251.70 = 212,069.80 : x - Step 2: Convert to fraction form
330,167.80/495,251.70 = 212,069.80/x - Step 3: Cross multiply
330,167.80x = 495,251.70 × 212,069.80 - Step 4: Simplify right side
330,167.80x = 105,027,928,968.66 - Step 5: Solve for x
x = 105,027,928,968.66/330,167.80 - Step 6: Final answer
x = 318,104.70
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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.