Finding the Fourth Proportional to 322,292.20, 483,438.30 and 286,349.80
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Solution
The fourth proportional to 322,292.20, 483,438.30 and 286,349.80 is: 429,524.70
Step by Step Solution
- Step 1: Write the proportion equation
322,292.20 : 483,438.30 = 286,349.80 : x - Step 2: Convert to fraction form
322,292.20/483,438.30 = 286,349.80/x - Step 3: Cross multiply
322,292.20x = 483,438.30 × 286,349.80 - Step 4: Simplify right side
322,292.20x = 138,432,460,517.34 - Step 5: Solve for x
x = 138,432,460,517.34/322,292.20 - Step 6: Final answer
x = 429,524.70
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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.