Finding the Fourth Proportional to 288,991.80, 433,487.70 and 149,023.80
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Solution
The fourth proportional to 288,991.80, 433,487.70 and 149,023.80 is: 223,535.70
Step by Step Solution
- Step 1: Write the proportion equation
288,991.80 : 433,487.70 = 149,023.80 : x - Step 2: Convert to fraction form
288,991.80/433,487.70 = 149,023.80/x - Step 3: Cross multiply
288,991.80x = 433,487.70 × 149,023.80 - Step 4: Simplify right side
288,991.80x = 64,599,984,307.26 - Step 5: Solve for x
x = 64,599,984,307.26/288,991.80 - Step 6: Final answer
x = 223,535.70
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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.